39900120 has 64 divisors (see below), whose sum is σ = 128913120. Its totient is φ = 9821184.

The previous prime is 39900103. The next prime is 39900163. The reversal of 39900120 is 2100993.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11229 + ... + 14348.

Almost surely, 2^39900120 is an apocalyptic number.

39900120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39900120 is an abundant number, since it is smaller than the sum of its proper divisors (89013000).

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

39900120 is a wasteful number, since it uses less digits than its factorization.

39900120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25604 (or 25600 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 39900120 is about 6316.6541776482. The cubic root of 39900120 is about 341.7102980832.

The spelling of 39900120 in words is "thirty-nine million, nine hundred thousand, one hundred twenty".