38319972 has 24 divisors (see below), whose sum is σ = 94673376. Its totient is φ = 12021888.

The previous prime is 38319971. The next prime is 38319973. The reversal of 38319972 is 27991383.

It is an interprime number because it is at equal distance from previous prime (38319971) and next prime (38319973).

It is not an unprimeable number, because it can be changed into a prime (38319971) 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, 93718 + ... + 94125.

It is an arithmetic number, because the mean of its divisors is an integer number (3944724).

Almost surely, 2^38319972 is an apocalyptic number.

It is an amenable number.

38319972 is an abundant number, since it is smaller than the sum of its proper divisors (56353404).

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

38319972 is a wasteful number, since it uses less digits than its factorization.

38319972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187867 (or 187865 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 38319972 is about 6190.3127546191. The cubic root of 38319972 is about 337.1385342669.

The spelling of 38319972 in words is "thirty-eight million, three hundred nineteen thousand, nine hundred seventy-two".