39930570 has 40 divisors (see below), whose sum is σ = 107371044. Its totient is φ = 10647936.

The previous prime is 39930563. The next prime is 39930607. The reversal of 39930570 is 7503993.

It can be written as a sum of positive squares in 2 ways, for example, as 34327881 + 5602689 = 5859^2 + 2367^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 23839 + ... + 25458.

Almost surely, 2^39930570 is an apocalyptic number.

39930570 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39930570 is an abundant number, since it is smaller than the sum of its proper divisors (67440474).

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

39930570 is a wasteful number, since it uses less digits than its factorization.

39930570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49316 (or 49307 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 36.

The square root of 39930570 is about 6319.0640129690. The cubic root of 39930570 is about 341.7972020223.

The spelling of 39930570 in words is "thirty-nine million, nine hundred thirty thousand, five hundred seventy".