39872772 has 72 divisors (see below), whose sum is σ = 104354432. Its totient is φ = 12830400.

The previous prime is 39872771. The next prime is 39872783. The reversal of 39872772 is 27727893.

It is not an unprimeable number, because it can be changed into a prime (39872771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146997 + ... + 147267.

Almost surely, 2^39872772 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 39872772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52177216).

39872772 is an abundant number, since it is smaller than the sum of its proper divisors (64481660).

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

39872772 is a wasteful number, since it uses less digits than its factorization.

39872772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 404 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 39872772 is about 6314.4890529638. The cubic root of 39872772 is about 341.6322095200.

The spelling of 39872772 in words is "thirty-nine million, eight hundred seventy-two thousand, seven hundred seventy-two".