39198980 has 12 divisors (see below), whose sum is σ = 82317900. Its totient is φ = 15679584.

The previous prime is 39198967. The next prime is 39198983. The reversal of 39198980 is 8989193.

It can be written as a sum of positive squares in 2 ways, for example, as 28558336 + 10640644 = 5344^2 + 3262^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39198983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979955 + ... + 979994.

It is an arithmetic number, because the mean of its divisors is an integer number (6859825).

Almost surely, 2^39198980 is an apocalyptic number.

It is an amenable number.

39198980 is an abundant number, since it is smaller than the sum of its proper divisors (43118920).

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

39198980 is a wasteful number, since it uses less digits than its factorization.

39198980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959958 (or 1959956 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 39198980 is about 6260.9088797075. The cubic root of 39198980 is about 339.6969040466.

The spelling of 39198980 in words is "thirty-nine million, one hundred ninety-eight thousand, nine hundred eighty".