39190724140 has 24 divisors (see below), whose sum is σ = 82322457840. Its totient is φ = 15672111168.

The previous prime is 39190724137. The next prime is 39190724141. The reversal of 39190724140 is 4142709193.

It is a junction number, because it is equal to n+sod(n) for n = 39190724093 and 39190724102.

It is not an unprimeable number, because it can be changed into a prime (39190724141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183687 + ... + 334846.

It is an arithmetic number, because the mean of its divisors is an integer number (3430102410).

Almost surely, 2^39190724140 is an apocalyptic number.

It is an amenable number.

39190724140 is an abundant number, since it is smaller than the sum of its proper divisors (43131733700).

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

39190724140 is a wasteful number, since it uses less digits than its factorization.

39190724140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522321 (or 522319 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 39190724140 in words is "thirty-nine billion, one hundred ninety million, seven hundred twenty-four thousand, one hundred forty".