1120404440 has 32 divisors (see below), whose sum is σ = 2526396480. Its totient is φ = 447186432.

The previous prime is 1120404433. The next prime is 1120404463. The reversal of 1120404440 is 444040211.

It is a happy number.

It is a super-2 number, since 2×1120404440² = 2510612218343427200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11729 + ... + 48768.

It is an arithmetic number, because the mean of its divisors is an integer number (78949890).

Almost surely, 2^1120404440 is an apocalyptic number.

1120404440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120404440 is an abundant number, since it is smaller than the sum of its proper divisors (1405992040).

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

1120404440 is a wasteful number, since it uses less digits than its factorization.

1120404440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60971 (or 60967 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1120404440 is about 33472.4429942005. The cubic root of 1120404440 is about 1038.6238084407.

Adding to 1120404440 its reverse (444040211), we get a palindrome (1564444651).

The spelling of 1120404440 in words is "one billion, one hundred twenty million, four hundred four thousand, four hundred forty".