39471872 has 72 divisors (see below), whose sum is σ = 87417792. Its totient is φ = 17638400.

The previous prime is 39471857. The next prime is 39471881. The reversal of 39471872 is 27817493.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301247 + ... + 301377.

It is an arithmetic number, because the mean of its divisors is an integer number (1214136).

Almost surely, 2^39471872 is an apocalyptic number.

39471872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39471872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43708896).

39471872 is an abundant number, since it is smaller than the sum of its proper divisors (47945920).

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

39471872 is a wasteful number, since it uses less digits than its factorization.

39471872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 251 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 39471872 is about 6282.6644029424. The cubic root of 39471872 is about 340.4833724486.

The spelling of 39471872 in words is "thirty-nine million, four hundred seventy-one thousand, eight hundred seventy-two".