39138404 has 24 divisors (see below), whose sum is σ = 73637760. Its totient is φ = 18143136.

The previous prime is 39138391. The next prime is 39138427. The reversal of 39138404 is 40483193.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1907 + ... + 9050.

It is an arithmetic number, because the mean of its divisors is an integer number (3068240).

Almost surely, 2^39138404 is an apocalyptic number.

It is an amenable number.

39138404 is a deficient number, since it is larger than the sum of its proper divisors (34499356).

39138404 is a wasteful number, since it uses less digits than its factorization.

39138404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11027 (or 11025 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 39138404 is about 6256.0693730169. The cubic root of 39138404 is about 339.5218307109.

The spelling of 39138404 in words is "thirty-nine million, one hundred thirty-eight thousand, four hundred four".