40139805004 has 48 divisors (see below), whose sum is σ = 79687226080. Its totient is φ = 17538301440.

The previous prime is 40139805001. The next prime is 40139805029. The reversal of 40139805004 is 40050893104.

It is a super-2 number, since 2×40139805004² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40139805001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1421584 + ... + 1449544.

Almost surely, 2^40139805004 is an apocalyptic number.

It is an amenable number.

40139805004 is a deficient number, since it is larger than the sum of its proper divisors (39547421076).

40139805004 is a wasteful number, since it uses less digits than its factorization.

40139805004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29450 (or 29448 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 40139805004 in words is "forty billion, one hundred thirty-nine million, eight hundred five thousand, four".