1104020440 has 32 divisors (see below), whose sum is σ = 2486466000. Its totient is φ = 441177984.

The previous prime is 1104020431. The next prime is 1104020461. The reversal of 1104020440 is 440204011.

It is a super-2 number, since 2×1104020440² = 2437722263875587200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29851 + ... + 55669.

Almost surely, 2^1104020440 is an apocalyptic number.

1104020440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1104020440 is an abundant number, since it is smaller than the sum of its proper divisors (1382445560).

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

1104020440 is a wasteful number, since it uses less digits than its factorization.

1104020440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26899 (or 26895 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1104020440 is about 33226.8030361032. The cubic root of 1104020440 is about 1033.5362288603.

Adding to 1104020440 its reverse (440204011), we get a palindrome (1544224451).

The spelling of 1104020440 in words is "one billion, one hundred four million, twenty thousand, four hundred forty".