39726972 has 36 divisors (see below), whose sum is σ = 100629256. Its totient is φ = 13214880.

The previous prime is 39726971. The next prime is 39726979. The reversal of 39726972 is 27962793.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39726971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24078 + ... + 25674.

Almost surely, 2^39726972 is an apocalyptic number.

It is an amenable number.

39726972 is an abundant number, since it is smaller than the sum of its proper divisors (60902284).

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

39726972 is a wasteful number, since it uses less digits than its factorization.

39726972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298 (or 2293 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 39726972 is about 6302.9336026964. The cubic root of 39726972 is about 341.2152933346.

The spelling of 39726972 in words is "thirty-nine million, seven hundred twenty-six thousand, nine hundred seventy-two".