38538972 has 18 divisors (see below), whose sum is σ = 97418048. Its totient is φ = 12846312.

The previous prime is 38538971. The next prime is 38539019. The reversal of 38538972 is 27983583.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38538971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 535228 + ... + 535299.

Almost surely, 2^38538972 is an apocalyptic number.

It is an amenable number.

38538972 is an abundant number, since it is smaller than the sum of its proper divisors (58879076).

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

38538972 is a wasteful number, since it uses less digits than its factorization.

38538972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070537 (or 1070532 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 38538972 is about 6207.9764819142. The cubic root of 38538972 is about 337.7795675337.

The spelling of 38538972 in words is "thirty-eight million, five hundred thirty-eight thousand, nine hundred seventy-two".