63400044 has 24 divisors (see below), whose sum is σ = 148091328. Its totient is φ = 21110800.

The previous prime is 63400033. The next prime is 63400069. The reversal of 63400044 is 44000436.

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, 12019 + ... + 16469.

It is an arithmetic number, because the mean of its divisors is an integer number (6170472).

Almost surely, 2^63400044 is an apocalyptic number.

It is an amenable number.

63400044 is an abundant number, since it is smaller than the sum of its proper divisors (84691284).

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

63400044 is a wasteful number, since it uses less digits than its factorization.

63400044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645 (or 5643 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 63400044 is about 7962.4144579392. The cubic root of 63400044 is about 398.7461655210.

The spelling of 63400044 in words is "sixty-three million, four hundred thousand, forty-four".