1102440 has 32 divisors (see below), whose sum is σ = 3307680. Its totient is φ = 293952.

The previous prime is 1102429. The next prime is 1102441. The reversal of 1102440 is 442011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1102441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4474 + ... + 4713.

It is an arithmetic number, because the mean of its divisors is an integer number (103365).

2^1102440 is an apocalyptic number.

1102440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102440 is an abundant number, since it is smaller than the sum of its proper divisors (2205240).

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

1102440 is a wasteful number, since it uses less digits than its factorization.

1102440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9201 (or 9197 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1102440 is about 1049.9714281827. The cubic root of 1102440 is about 103.3042813461.

Adding to 1102440 its reverse (442011), we get a palindrome (1544451).

The spelling of 1102440 in words is "one million, one hundred two thousand, four hundred forty".