39968530 has 32 divisors (see below), whose sum is σ = 87060096. Its totient is φ = 12897024.

The previous prime is 39968521. The next prime is 39968531. The reversal of 39968530 is 3586993.

39968530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (39968531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15604 + ... + 17983.

It is an arithmetic number, because the mean of its divisors is an integer number (2720628).

Almost surely, 2^39968530 is an apocalyptic number.

39968530 is an abundant number, since it is smaller than the sum of its proper divisors (47091566).

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

39968530 is a wasteful number, since it uses less digits than its factorization.

39968530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33618.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 39968530 is about 6322.0669088519. The cubic root of 39968530 is about 341.9054775659.

The spelling of 39968530 in words is "thirty-nine million, nine hundred sixty-eight thousand, five hundred thirty".