38811984 has 40 divisors (see below), whose sum is σ = 105543840. Its totient is φ = 12256128.

The previous prime is 38811943. The next prime is 38811991. The reversal of 38811984 is 48911883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20367 + ... + 22190.

It is an arithmetic number, because the mean of its divisors is an integer number (2638596).

Almost surely, 2^38811984 is an apocalyptic number.

It is an amenable number.

38811984 is an abundant number, since it is smaller than the sum of its proper divisors (66731856).

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

38811984 is a wasteful number, since it uses less digits than its factorization.

38811984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42587 (or 42581 counting only the distinct ones).

The product of its digits is 55296, while the sum is 42.

The square root of 38811984 is about 6229.9264843175. The cubic root of 38811984 is about 338.5753072298.

The spelling of 38811984 in words is "thirty-eight million, eight hundred eleven thousand, nine hundred eighty-four".