239970820 has 12 divisors (see below), whose sum is σ = 503938764. Its totient is φ = 95988320.

The previous prime is 239970811. The next prime is 239970821. The reversal of 239970820 is 28079932.

It can be written as a sum of positive squares in 2 ways, for example, as 125395204 + 114575616 = 11198^2 + 10704^2 .

It is not an unprimeable number, because it can be changed into a prime (239970821) 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, 5999251 + ... + 5999290.

It is an arithmetic number, because the mean of its divisors is an integer number (41994897).

Almost surely, 2^239970820 is an apocalyptic number.

239970820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239970820 is an abundant number, since it is smaller than the sum of its proper divisors (263967944).

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

239970820 is a wasteful number, since it uses less digits than its factorization.

239970820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11998550 (or 11998548 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 239970820 is about 15490.9915757514. The cubic root of 239970820 is about 621.4213143243.

The spelling of 239970820 in words is "two hundred thirty-nine million, nine hundred seventy thousand, eight hundred twenty".