38904832394 has 4 divisors (see below), whose sum is σ = 58357248594. Its totient is φ = 19452416196.

The previous prime is 38904832387. The next prime is 38904832403. The reversal of 38904832394 is 49323840983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49323840983 = 1151 ⋅42853033.

It can be written as a sum of positive squares in only one way, i.e., 37243210225 + 1661622169 = 192985^2 + 40763^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9726208097 + ... + 9726208100.

Almost surely, 2^38904832394 is an apocalyptic number.

38904832394 is a deficient number, since it is larger than the sum of its proper divisors (19452416200).

38904832394 is a wasteful number, since it uses less digits than its factorization.

38904832394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19452416199.

The product of its (nonzero) digits is 4478976, while the sum is 53.

The spelling of 38904832394 in words is "thirty-eight billion, nine hundred four million, eight hundred thirty-two thousand, three hundred ninety-four".