39874920 has 64 divisors (see below), whose sum is σ = 125928000. Its totient is φ = 10073088.

The previous prime is 39874909. The next prime is 39874927. The reversal of 39874920 is 2947893.

It is not an unprimeable number, because it can be changed into a prime (39874927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6465 + ... + 11024.

It is an arithmetic number, because the mean of its divisors is an integer number (1967625).

Almost surely, 2^39874920 is an apocalyptic number.

39874920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39874920 is an abundant number, since it is smaller than the sum of its proper divisors (86053080).

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

39874920 is a wasteful number, since it uses less digits than its factorization.

39874920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17522 (or 17518 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 39874920 is about 6314.6591356937. The cubic root of 39874920 is about 341.6383441391.

The spelling of 39874920 in words is "thirty-nine million, eight hundred seventy-four thousand, nine hundred twenty".