43964400440 has 32 divisors (see below), whose sum is σ = 99466436160. Its totient is φ = 17488598400.

The previous prime is 43964400439. The next prime is 43964400481. The reversal of 43964400440 is 4400446934.

43964400440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 43964400394 and 43964400403.

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, 3028976 + ... + 3043455.

It is an arithmetic number, because the mean of its divisors is an integer number (3108326130).

Almost surely, 2^43964400440 is an apocalyptic number.

43964400440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43964400440 is an abundant number, since it is smaller than the sum of its proper divisors (55502035720).

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

43964400440 is a wasteful number, since it uses less digits than its factorization.

43964400440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6072623 (or 6072619 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 43964400440 in words is "forty-three billion, nine hundred sixty-four million, four hundred thousand, four hundred forty".