40037921930 has 16 divisors (see below), whose sum is σ = 72282117960. Its totient is φ = 15967644672.

The previous prime is 40037921929. The next prime is 40037921941. The reversal of 40037921930 is 3912973004.

It can be written as a sum of positive squares in 4 ways, for example, as 37516978249 + 2520943681 = 193693^2 + 50209^2 .

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, 5936975 + ... + 5943714.

Almost surely, 2^40037921930 is an apocalyptic number.

40037921930 is a deficient number, since it is larger than the sum of its proper divisors (32244196030).

40037921930 is a wasteful number, since it uses less digits than its factorization.

40037921930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11881033.

The product of its (nonzero) digits is 40824, while the sum is 38.

The spelling of 40037921930 in words is "forty billion, thirty-seven million, nine hundred twenty-one thousand, nine hundred thirty".