39792138 has 16 divisors (see below), whose sum is σ = 84265920. Its totient is φ = 12483776.

The previous prime is 39792133. The next prime is 39792149. The reversal of 39792138 is 83129793.

39792138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×39792138² = 3166828493222088, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39792138.

It is not an unprimeable number, because it can be changed into a prime (39792133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194958 + ... + 195161.

It is an arithmetic number, because the mean of its divisors is an integer number (5266620).

Almost surely, 2^39792138 is an apocalyptic number.

39792138 is an abundant number, since it is smaller than the sum of its proper divisors (44473782).

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

39792138 is a wasteful number, since it uses less digits than its factorization.

39792138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390141.

The product of its digits is 81648, while the sum is 42.

The square root of 39792138 is about 6308.1009820706. The cubic root of 39792138 is about 341.4017618530.

The spelling of 39792138 in words is "thirty-nine million, seven hundred ninety-two thousand, one hundred thirty-eight".