39980180 has 24 divisors (see below), whose sum is σ = 88378080. Its totient is φ = 15150240.

The previous prime is 39980177. The next prime is 39980231. The reversal of 39980180 is 8108993.

It is a super-3 number, since 3×39980180³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

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, 52226 + ... + 52985.

It is an arithmetic number, because the mean of its divisors is an integer number (3682420).

Almost surely, 2^39980180 is an apocalyptic number.

It is an amenable number.

39980180 is an abundant number, since it is smaller than the sum of its proper divisors (48397900).

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

39980180 is a wasteful number, since it uses less digits than its factorization.

39980180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105239 (or 105237 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 39980180 is about 6322.9882176072. The cubic root of 39980180 is about 341.9386937977.

The spelling of 39980180 in words is "thirty-nine million, nine hundred eighty thousand, one hundred eighty".