39159942 has 32 divisors (see below), whose sum is σ = 83607552. Its totient is φ = 12184704.

The previous prime is 39159937. The next prime is 39159973. The reversal of 39159942 is 24995193.

It is a junction number, because it is equal to n+sod(n) for n = 39159894 and 39159903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11443 + ... + 14465.

It is an arithmetic number, because the mean of its divisors is an integer number (2612736).

Almost surely, 2^39159942 is an apocalyptic number.

39159942 is an abundant number, since it is smaller than the sum of its proper divisors (44447610).

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

39159942 is a wasteful number, since it uses less digits than its factorization.

39159942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172.

The product of its digits is 87480, while the sum is 42.

The square root of 39159942 is about 6257.7905046430. The cubic root of 39159942 is about 339.5840993053.

The spelling of 39159942 in words is "thirty-nine million, one hundred fifty-nine thousand, nine hundred forty-two".