239945930 has 16 divisors (see below), whose sum is σ = 493603200. Its totient is φ = 82267152.

The previous prime is 239945929. The next prime is 239945933. The reversal of 239945930 is 39549932.

It is not an unprimeable number, because it can be changed into a prime (239945933) 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 7 ways as a sum of consecutive naturals, for example, 1713830 + ... + 1713969.

It is an arithmetic number, because the mean of its divisors is an integer number (30850200).

Almost surely, 2^239945930 is an apocalyptic number.

239945930 is an abundant number, since it is smaller than the sum of its proper divisors (253657270).

239945930 is a wasteful number, since it uses less digits than its factorization.

239945930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427813.

The product of its (nonzero) digits is 262440, while the sum is 44.

The square root of 239945930 is about 15490.1881847833. The cubic root of 239945930 is about 621.3998287796.

The spelling of 239945930 in words is "two hundred thirty-nine million, nine hundred forty-five thousand, nine hundred thirty".