402240304 has 20 divisors (see below), whose sum is σ = 780887520. Its totient is φ = 200720960.

The previous prime is 402240269. The next prime is 402240341. The reversal of 402240304 is 403042204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16552 + ... + 32839.

It is an arithmetic number, because the mean of its divisors is an integer number (39044376).

Almost surely, 2^402240304 is an apocalyptic number.

It is an amenable number.

402240304 is a deficient number, since it is larger than the sum of its proper divisors (378647216).

402240304 is a wasteful number, since it uses less digits than its factorization.

402240304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49908 (or 49902 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 402240304 is about 20055.9293975622. The cubic root of 402240304 is about 738.1792980485.

Adding to 402240304 its reverse (403042204), we get a palindrome (805282508).

The spelling of 402240304 in words is "four hundred two million, two hundred forty thousand, three hundred four".