304490641 has 16 divisors (see below), whose sum is σ = 383902848. Its totient is φ = 235036800.

The previous prime is 304490623. The next prime is 304490647. The reversal of 304490641 is 146094403.

It is a cyclic number.

It is not a de Polignac number, because 304490641 - 2⁵ = 304490609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (304490647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37075 + ... + 44536.

It is an arithmetic number, because the mean of its divisors is an integer number (23993928).

Almost surely, 2^304490641 is an apocalyptic number.

It is an amenable number.

304490641 is a deficient number, since it is larger than the sum of its proper divisors (79412207).

304490641 is a wasteful number, since it uses less digits than its factorization.

304490641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81672.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 304490641 is about 17449.6601972646. The cubic root of 304490641 is about 672.7566244199.

The spelling of 304490641 in words is "three hundred four million, four hundred ninety thousand, six hundred forty-one".