38939956 has 12 divisors (see below), whose sum is σ = 74340000. Its totient is φ = 17699960.

The previous prime is 38939939. The next prime is 38939959. The reversal of 38939956 is 65993983.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38939959) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 442456 + ... + 442543.

It is an arithmetic number, because the mean of its divisors is an integer number (6195000).

Almost surely, 2^38939956 is an apocalyptic number.

It is an amenable number.

38939956 is a deficient number, since it is larger than the sum of its proper divisors (35400044).

38939956 is a wasteful number, since it uses less digits than its factorization.

38939956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885014 (or 885012 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 52.

The square root of 38939956 is about 6240.1887791957. The cubic root of 38939956 is about 338.9470190985.

The spelling of 38939956 in words is "thirty-eight million, nine hundred thirty-nine thousand, nine hundred fifty-six".