40005921488 has 20 divisors (see below), whose sum is σ = 83473894308. Its totient is φ = 18464271360.

The previous prime is 40005921469. The next prime is 40005921499. The reversal of 40005921488 is 88412950004.

It can be written as a sum of positive squares in 2 ways, for example, as 6857164864 + 33148756624 = 82808^2 + 182068^2 .

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, 96167873 + ... + 96168288.

Almost surely, 2^40005921488 is an apocalyptic number.

It is an amenable number.

40005921488 is an abundant number, since it is smaller than the sum of its proper divisors (43467972820).

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

40005921488 is a wasteful number, since it uses less digits than its factorization.

40005921488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192336182 (or 192336176 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 40005921488 in words is "forty billion, five million, nine hundred twenty-one thousand, four hundred eighty-eight".