1113440 has 24 divisors (see below), whose sum is σ = 2630880. Its totient is φ = 445312.

The previous prime is 1113421. The next prime is 1113451. The reversal of 1113440 is 443111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3320 + ... + 3639.

It is an arithmetic number, because the mean of its divisors is an integer number (109620).

2^1113440 is an apocalyptic number.

1113440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113440 is an abundant number, since it is smaller than the sum of its proper divisors (1517440).

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

1113440 is an equidigital number, since it uses as much as digits as its factorization.

1113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6974 (or 6966 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1113440 is about 1055.1966641342. The cubic root of 1113440 is about 103.6467303582.

Adding to 1113440 its reverse (443111), we get a palindrome (1556551).

The spelling of 1113440 in words is "one million, one hundred thirteen thousand, four hundred forty".