239904001 has 4 divisors (see below), whose sum is σ = 240267604. Its totient is φ = 239540400.

The previous prime is 239903981. The next prime is 239904059. The reversal of 239904001 is 100409932.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76038400 + 163865601 = 8720^2 + 12801^2 .

It is a cyclic number.

It is not a de Polignac number, because 239904001 - 2¹¹ = 239901953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239904601) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 180810 + ... + 182131.

It is an arithmetic number, because the mean of its divisors is an integer number (60066901).

Almost surely, 2^239904001 is an apocalyptic number.

It is an amenable number.

239904001 is a deficient number, since it is larger than the sum of its proper divisors (363603).

239904001 is an equidigital number, since it uses as much as digits as its factorization.

239904001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363602.

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

The square root of 239904001 is about 15488.8347205334. The cubic root of 239904001 is about 621.3636314702.

The spelling of 239904001 in words is "two hundred thirty-nine million, nine hundred four thousand, one".