38381892 has 24 divisors (see below), whose sum is σ = 91464576. Its totient is φ = 12521568.

The previous prime is 38381891. The next prime is 38381899. The reversal of 38381892 is 29818383.

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

It is not an unprimeable number, because it can be changed into a prime (38381891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33463 + ... + 34590.

It is an arithmetic number, because the mean of its divisors is an integer number (3811024).

Almost surely, 2^38381892 is an apocalyptic number.

It is an amenable number.

38381892 is an abundant number, since it is smaller than the sum of its proper divisors (53082684).

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

38381892 is a wasteful number, since it uses less digits than its factorization.

38381892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68107 (or 68105 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 38381892 is about 6195.3120986759. The cubic root of 38381892 is about 337.3200269539.

The spelling of 38381892 in words is "thirty-eight million, three hundred eighty-one thousand, eight hundred ninety-two".