239940100 has 27 divisors (see below), whose sum is σ = 521006367. Its totient is φ = 95914080.

The previous prime is 239940097. The next prime is 239940119. The reversal of 239940100 is 1049932.

It is a happy number.

The square root of 239940100 is 15490.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 21846276 + 218093824 = 4674^2 + 14768^2 .

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 154126 + ... + 155674.

Almost surely, 2^239940100 is an apocalyptic number.

239940100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

239940100 is the 15490-th square number.

It is an amenable number.

239940100 is an abundant number, since it is smaller than the sum of its proper divisors (281066267).

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

239940100 is an equidigital number, since it uses as much as digits as its factorization.

239940100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112 (or 1556 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The cubic root of 239940100 is about 621.3947959925.

The spelling of 239940100 in words is "two hundred thirty-nine million, nine hundred forty thousand, one hundred".