39940200 has 72 divisors (see below), whose sum is σ = 134138550. Its totient is φ = 10650240.

The previous prime is 39940193. The next prime is 39940247. The reversal of 39940200 is 204993.

It can be written as a sum of positive squares in 3 ways, for example, as 32421636 + 7518564 = 5694^2 + 2742^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9295 + ... + 12894.

Almost surely, 2^39940200 is an apocalyptic number.

39940200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39940200 is an abundant number, since it is smaller than the sum of its proper divisors (94198350).

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

39940200 is a wasteful number, since it uses less digits than its factorization.

39940200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22211 (or 22199 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 39940200 is about 6319.8259469704. The cubic root of 39940200 is about 341.8246767323.

The spelling of 39940200 in words is "thirty-nine million, nine hundred forty thousand, two hundred".