1044563680 has 48 divisors (see below), whose sum is σ = 2470230000. Its totient is φ = 417411072.

The previous prime is 1044563669. The next prime is 1044563713. The reversal of 1044563680 is 863654401.

It is a happy number.

It is a super-2 number, since 2×1044563680² = 2182226563150284800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197227 + ... + 202453.

It is an arithmetic number, because the mean of its divisors is an integer number (51463125).

Almost surely, 2^1044563680 is an apocalyptic number.

1044563680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044563680 is an abundant number, since it is smaller than the sum of its proper divisors (1425666320).

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

1044563680 is a wasteful number, since it uses less digits than its factorization.

1044563680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6491 (or 6483 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 1044563680 is about 32319.7103947421. The cubic root of 1044563680 is about 1014.6392078353.

The spelling of 1044563680 in words is "one billion, forty-four million, five hundred sixty-three thousand, six hundred eighty".