40371684372 has 18 divisors (see below), whose sum is σ = 102050646698. Its totient is φ = 13457228112.

The previous prime is 40371684361. The next prime is 40371684377. The reversal of 40371684372 is 27348617304.

It can be written as a sum of positive squares in only one way, i.e., 37525888656 + 2845795716 = 193716^2 + 53346^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40371684377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 560717803 + ... + 560717874.

Almost surely, 2^40371684372 is an apocalyptic number.

It is an amenable number.

40371684372 is an abundant number, since it is smaller than the sum of its proper divisors (61678962326).

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

40371684372 is a wasteful number, since it uses less digits than its factorization.

40371684372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121435687 (or 1121435682 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 40371684372 in words is "forty billion, three hundred seventy-one million, six hundred eighty-four thousand, three hundred seventy-two".