38904966 has 24 divisors (see below), whose sum is σ = 84436560. Its totient is φ = 12946416.

The previous prime is 38904953. The next prime is 38904973. The reversal of 38904966 is 66940983.

It is a super-2 number, since 2×38904966² = 3027192758922312, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11920 + ... + 14828.

It is an arithmetic number, because the mean of its divisors is an integer number (3518190).

Almost surely, 2^38904966 is an apocalyptic number.

38904966 is an abundant number, since it is smaller than the sum of its proper divisors (45531594).

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

38904966 is a wasteful number, since it uses less digits than its factorization.

38904966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660 (or 3657 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 38904966 is about 6237.3845480297. The cubic root of 38904966 is about 338.8454669360.

The spelling of 38904966 in words is "thirty-eight million, nine hundred four thousand, nine hundred sixty-six".