42944828640 has 192 divisors, whose sum is σ = 159932828160. Its totient is φ = 9477457920.

The previous prime is 42944828621. The next prime is 42944828677. The reversal of 42944828640 is 4682844924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122926 + ... + 317805.

It is an arithmetic number, because the mean of its divisors is an integer number (832983480).

Almost surely, 2^42944828640 is an apocalyptic number.

42944828640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42944828640 is an abundant number, since it is smaller than the sum of its proper divisors (116987999520).

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

42944828640 is a wasteful number, since it uses less digits than its factorization.

42944828640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440785 (or 440777 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 51.

The spelling of 42944828640 in words is "forty-two billion, nine hundred forty-four million, eight hundred twenty-eight thousand, six hundred forty".