304949440 has 28 divisors (see below), whose sum is σ = 726161616. Its totient is φ = 121979648.

The previous prime is 304949423. The next prime is 304949441. The reversal of 304949440 is 44949403.

It is a self number, because there is not a number n which added to its sum of digits gives 304949440.

It is not an unprimeable number, because it can be changed into a prime (304949441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476164 + ... + 476803.

Almost surely, 2^304949440 is an apocalyptic number.

It is an amenable number.

304949440 is an abundant number, since it is smaller than the sum of its proper divisors (421212176).

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

304949440 is an equidigital number, since it uses as much as digits as its factorization.

304949440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952984 (or 952974 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 304949440 is about 17462.8016079895. The cubic root of 304949440 is about 673.0943525550.

Subtracting from 304949440 its sum of digits (37), we obtain a palindrome (304949403).

The spelling of 304949440 in words is "three hundred four million, nine hundred forty-nine thousand, four hundred forty".