1043404656 has 40 divisors (see below), whose sum is σ = 3080529024. Its totient is φ = 298115520.

The previous prime is 1043404643. The next prime is 1043404657. The reversal of 1043404656 is 6564043401.

1043404656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043404657) 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, 1552350 + ... + 1553021.

Almost surely, 2^1043404656 is an apocalyptic number.

1043404656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1043404656 is an abundant number, since it is smaller than the sum of its proper divisors (2037124368).

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

1043404656 is a wasteful number, since it uses less digits than its factorization.

1043404656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105389 (or 3105383 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 1043404656 is about 32301.7748119202. The cubic root of 1043404656 is about 1014.2637954550.

The spelling of 1043404656 in words is "one billion, forty-three million, four hundred four thousand, six hundred fifty-six".