38381672 has 32 divisors (see below), whose sum is σ = 86577600. Its totient is φ = 15583104.

The previous prime is 38381669. The next prime is 38381701. The reversal of 38381672 is 27618383.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

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

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, 16973 + ... + 19100.

It is an arithmetic number, because the mean of its divisors is an integer number (2705550).

Almost surely, 2^38381672 is an apocalyptic number.

It is an amenable number.

38381672 is an abundant number, since it is smaller than the sum of its proper divisors (48195928).

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

38381672 is a wasteful number, since it uses less digits than its factorization.

38381672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36105 (or 36101 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 38381672 is about 6195.2943432899. The cubic root of 38381672 is about 337.3193824612.

The spelling of 38381672 in words is "thirty-eight million, three hundred eighty-one thousand, six hundred seventy-two".