240421304 has 16 divisors (see below), whose sum is σ = 451161600. Its totient is φ = 120111552.

The previous prime is 240421297. The next prime is 240421331. The reversal of 240421304 is 403124042.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1517 + ... + 21980.

It is an arithmetic number, because the mean of its divisors is an integer number (28197600).

Almost surely, 2^240421304 is an apocalyptic number.

It is an amenable number.

240421304 is a deficient number, since it is larger than the sum of its proper divisors (210740296).

240421304 is a wasteful number, since it uses less digits than its factorization.

240421304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24782 (or 24778 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 240421304 is about 15505.5249508038. The cubic root of 240421304 is about 621.8099245862.

Adding to 240421304 its reverse (403124042), we get a palindrome (643545346).

The spelling of 240421304 in words is "two hundred forty million, four hundred twenty-one thousand, three hundred four".