39539138 has 8 divisors (see below), whose sum is σ = 59616588. Its totient is φ = 19666944.

The previous prime is 39539117. The next prime is 39539141. The reversal of 39539138 is 83193593.

It can be written as a sum of positive squares in 2 ways, for example, as 39526369 + 12769 = 6287^2 + 113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 39539095 and 39539104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50831 + ... + 51602.

Almost surely, 2^39539138 is an apocalyptic number.

39539138 is a deficient number, since it is larger than the sum of its proper divisors (20077450).

39539138 is a wasteful number, since it uses less digits than its factorization.

39539138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102628.

The product of its digits is 87480, while the sum is 41.

The square root of 39539138 is about 6288.0154261897. The cubic root of 39539138 is about 340.6766742915.

The spelling of 39539138 in words is "thirty-nine million, five hundred thirty-nine thousand, one hundred thirty-eight".