38539272 has 64 divisors (see below), whose sum is σ = 103809600. Its totient is φ = 11878400.

The previous prime is 38539253. The next prime is 38539273. The reversal of 38539272 is 27293583.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 38539272.

It is not an unprimeable number, because it can be changed into a prime (38539273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23272 + ... + 24872.

It is an arithmetic number, because the mean of its divisors is an integer number (1622025).

Almost surely, 2^38539272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38539272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51904800).

38539272 is an abundant number, since it is smaller than the sum of its proper divisors (65270328).

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

38539272 is a wasteful number, since it uses less digits than its factorization.

38539272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1682 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 38539272 is about 6208.0006443299. Note that the first 3 decimals coincide. The cubic root of 38539272 is about 337.7804439938.

The spelling of 38539272 in words is "thirty-eight million, five hundred thirty-nine thousand, two hundred seventy-two".