38904236 has 18 divisors (see below), whose sum is σ = 79198308. Its totient is φ = 16673160.

The previous prime is 38904221. The next prime is 38904253. The reversal of 38904236 is 63240983.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 38904196 and 38904205.

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 5 ways as a sum of consecutive naturals, for example, 99050 + ... + 99441.

It is an arithmetic number, because the mean of its divisors is an integer number (4399906).

Almost surely, 2^38904236 is an apocalyptic number.

It is an amenable number.

38904236 is an abundant number, since it is smaller than the sum of its proper divisors (40294072).

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

38904236 is a wasteful number, since it uses less digits than its factorization.

38904236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198509 (or 198500 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 38904236 is about 6237.3260296380. The cubic root of 38904236 is about 338.8433475944.

The spelling of 38904236 in words is "thirty-eight million, nine hundred four thousand, two hundred thirty-six".