40445832790992 has 20 divisors (see below), whose sum is σ = 104485068043520. Its totient is φ = 13481944263648.

The previous prime is 40445832790963. The next prime is 40445832791083. The reversal of 40445832790992 is 29909723854404.

It is a happy number.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421310758192 + ... + 421310758287.

It is an arithmetic number, because the mean of its divisors is an integer number (5224253402176).

Almost surely, 2^{40445832790992} is an apocalyptic number.

It is an amenable number.

40445832790992 is an abundant number, since it is smaller than the sum of its proper divisors (64039235252528).

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

40445832790992 is a wasteful number, since it uses less digits than its factorization.

40445832790992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842621516490 (or 842621516484 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 66.

The spelling of 40445832790992 in words is "forty trillion, four hundred forty-five billion, eight hundred thirty-two million, seven hundred ninety thousand, nine hundred ninety-two".