39901272 has 16 divisors (see below), whose sum is σ = 99753240. Its totient is φ = 13300416.

The previous prime is 39901271. The next prime is 39901307. The reversal of 39901272 is 27210993.

It is a super-2 number, since 2×39901272² = 3184223014435968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39901271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831253 + ... + 831300.

Almost surely, 2^39901272 is an apocalyptic number.

It is an amenable number.

39901272 is an abundant number, since it is smaller than the sum of its proper divisors (59851968).

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

39901272 is a wasteful number, since it uses less digits than its factorization.

39901272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662562 (or 1662558 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 39901272 is about 6316.7453645054. The cubic root of 39901272 is about 341.7135866821.

The spelling of 39901272 in words is "thirty-nine million, nine hundred one thousand, two hundred seventy-two".