40393937736072 has 24 divisors (see below), whose sum is σ = 109400248035390. Its totient is φ = 13464645912000.

The previous prime is 40393937736043. The next prime is 40393937736073. The reversal of 40393937736072 is 27063773939304.

40393937736072 is a `hidden beast` number, since 403 + 9 + 3 + 9 + 37 + 73 + 60 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24326458738596 + 16067478997476 = 4932186^2 + 4008426^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (40393937736073) 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, 280513456429 + ... + 280513456572.

Almost surely, 2^{40393937736072} is an apocalyptic number.

It is an amenable number.

40393937736072 is an abundant number, since it is smaller than the sum of its proper divisors (69006310299318).

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

40393937736072 is a wasteful number, since it uses less digits than its factorization.

40393937736072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561026913013 (or 561026913006 counting only the distinct ones).

The product of its (nonzero) digits is 108020304, while the sum is 63.

The spelling of 40393937736072 in words is "forty trillion, three hundred ninety-three billion, nine hundred thirty-seven million, seven hundred thirty-six thousand, seventy-two".