1144660 has 48 divisors (see below), whose sum is σ = 2705472. Its totient is φ = 406560.

The previous prime is 1144657. The next prime is 1144667. The reversal of 1144660 is 664411.

1144660 = 170² + 171² + ... + 202².

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26599 + ... + 26641.

It is an arithmetic number, because the mean of its divisors is an integer number (56364).

2^1144660 is an apocalyptic number.

1144660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1352736).

1144660 is an abundant number, since it is smaller than the sum of its proper divisors (1560812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144660 is a wasteful number, since it uses less digits than its factorization.

1144660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1144660 is about 1069.8878445893. The cubic root of 1144660 is about 104.6065395436.

Subtracting from 1144660 its reverse (664411), we obtain a square (480249 = 693²).

It can be divided in two parts, 114 and 4660, that added together give a palindrome (4774).

The spelling of 1144660 in words is "one million, one hundred forty-four thousand, six hundred sixty".