39884172 has 12 divisors (see below), whose sum is σ = 93063096. Its totient is φ = 13294720.

The previous prime is 39884167. The next prime is 39884189. The reversal of 39884172 is 27148893.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×39884172² = 3181494352251168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661829 + ... + 1661852.

It is an arithmetic number, because the mean of its divisors is an integer number (7755258).

Almost surely, 2^39884172 is an apocalyptic number.

It is an amenable number.

39884172 is an abundant number, since it is smaller than the sum of its proper divisors (53178924).

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

39884172 is a wasteful number, since it uses less digits than its factorization.

39884172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323688 (or 3323686 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 39884172 is about 6315.3916743144. The cubic root of 39884172 is about 341.6647650367.

The spelling of 39884172 in words is "thirty-nine million, eight hundred eighty-four thousand, one hundred seventy-two".