38909612 has 12 divisors (see below), whose sum is σ = 77819280. Its totient is φ = 16675536.

The previous prime is 38909593. The next prime is 38909623. The reversal of 38909612 is 21690983.

38909612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

38909612 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694787 + ... + 694842.

It is an arithmetic number, because the mean of its divisors is an integer number (6484940).

Almost surely, 2^38909612 is an apocalyptic number.

It is an amenable number.

38909612 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38909612 is a wasteful number, since it uses less digits than its factorization.

38909612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389640 (or 1389638 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 38909612 is about 6237.7569686547. The cubic root of 38909612 is about 338.8589546176.

The spelling of 38909612 in words is "thirty-eight million, nine hundred nine thousand, six hundred twelve".