38321972 has 12 divisors (see below), whose sum is σ = 72222276. Its totient is φ = 17687040.

The previous prime is 38321971. The next prime is 38321989. The reversal of 38321972 is 27912383.

38321972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 23775376 + 14546596 = 4876^2 + 3814^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38321971) by changing a digit.

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, 368429 + ... + 368532.

It is an arithmetic number, because the mean of its divisors is an integer number (6018523).

Almost surely, 2^38321972 is an apocalyptic number.

It is an amenable number.

38321972 is a deficient number, since it is larger than the sum of its proper divisors (33900304).

38321972 is a wasteful number, since it uses less digits than its factorization.

38321972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736978 (or 736976 counting only the distinct ones).

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

The square root of 38321972 is about 6190.4742952378. The cubic root of 38321972 is about 337.1443994882.

It can be divided in two parts, 38321 and 972, that added together give a palindrome (39293).

The spelling of 38321972 in words is "thirty-eight million, three hundred twenty-one thousand, nine hundred seventy-two".