240399304 has 8 divisors (see below), whose sum is σ = 450748710. Its totient is φ = 120199648.

The previous prime is 240399259. The next prime is 240399307. The reversal of 240399304 is 403993042.

It can be written as a sum of positive squares in only one way, i.e., 229522500 + 10876804 = 15150^2 + 3298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 240399304.

It is not an unprimeable number, because it can be changed into a prime (240399307) 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 as a sum of consecutive naturals, namely, 15024949 + ... + 15024964.

Almost surely, 2^240399304 is an apocalyptic number.

It is an amenable number.

240399304 is a deficient number, since it is larger than the sum of its proper divisors (210349406).

240399304 is a wasteful number, since it uses less digits than its factorization.

240399304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30049919 (or 30049915 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 240399304 is about 15504.8155100278. The cubic root of 240399304 is about 621.7909575543.

The spelling of 240399304 in words is "two hundred forty million, three hundred ninety-nine thousand, three hundred four".