1445740 has 12 divisors (see below), whose sum is σ = 3036096. Its totient is φ = 578288.

The previous prime is 1445723. The next prime is 1445749. The reversal of 1445740 is 475441.

It is not an unprimeable number, because it can be changed into a prime (1445749) 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 3 ways as a sum of consecutive naturals, for example, 36124 + ... + 36163.

It is an arithmetic number, because the mean of its divisors is an integer number (253008).

2^1445740 is an apocalyptic number.

1445740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445740 is an abundant number, since it is smaller than the sum of its proper divisors (1590356).

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

1445740 is a wasteful number, since it uses less digits than its factorization.

1445740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72296 (or 72294 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 1445740 is about 1202.3892880428. The cubic root of 1445740 is about 113.0741675102.

Subtracting from 1445740 its reverse (475441), we obtain a cube (970299 = 99³).

It can be divided in two parts, 14 and 45740, that added together give a palindrome (45754).

The spelling of 1445740 in words is "one million, four hundred forty-five thousand, seven hundred forty".