38231972 has 6 divisors (see below), whose sum is σ = 66905958. Its totient is φ = 19115984.

The previous prime is 38231969. The next prime is 38231981. The reversal of 38231972 is 27913283.

It can be written as a sum of positive squares in only one way, i.e., 24049216 + 14182756 = 4904^2 + 3766^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4778993 + ... + 4779000.

It is an arithmetic number, because the mean of its divisors is an integer number (11150993).

Almost surely, 2^38231972 is an apocalyptic number.

It is an amenable number.

38231972 is a deficient number, since it is larger than the sum of its proper divisors (28673986).

38231972 is a wasteful number, since it uses less digits than its factorization.

38231972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9557997 (or 9557995 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 38231972 is about 6183.2007892353. The cubic root of 38231972 is about 336.8802622396.

The spelling of 38231972 in words is "thirty-eight million, two hundred thirty-one thousand, nine hundred seventy-two".