304107681 has 8 divisors (see below), whose sum is σ = 405558144. Its totient is φ = 202697840.

The previous prime is 304107647. The next prime is 304107691. The reversal of 304107681 is 186701403.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 304107681 - 2¹³ = 304099489 is a prime.

It is a super-2 number, since 2×304107681² = 184962963286395522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (304107691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20776 + ... + 32246.

It is an arithmetic number, because the mean of its divisors is an integer number (50694768).

Almost surely, 2^304107681 is an apocalyptic number.

It is an amenable number.

304107681 is a deficient number, since it is larger than the sum of its proper divisors (101450463).

304107681 is a wasteful number, since it uses less digits than its factorization.

304107681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20311.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 304107681 is about 17438.6834652161. The cubic root of 304107681 is about 672.4744625304.

The spelling of 304107681 in words is "three hundred four million, one hundred seven thousand, six hundred eighty-one".