304107028681 has 9 divisors (see below), whose sum is σ = 314251046823. Its totient is φ = 294280580760.

The previous prime is 304107028669. The next prime is 304107028717. The reversal of 304107028681 is 186820701403.

The square root of 304107028681 is 551459.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 297307377081 + 6799651600 = 545259^2 + 82460^2 .

It is not a de Polignac number, because 304107028681 - 2⁷ = 304107028553 is a prime.

It is a super-2 number, since 2×304107028681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304104028681) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17086335 + ... + 17104123.

Almost surely, 2^304107028681 is an apocalyptic number.

304107028681 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

304107028681 is the 551459-th square number.

304107028681 is the 275730-th centered octagonal number.

It is an amenable number.

304107028681 is a deficient number, since it is larger than the sum of its proper divisors (10144018142).

304107028681 is an frugal number, since it uses more digits than its factorization.

304107028681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35640 (or 17820 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 304107028681 in words is "three hundred four billion, one hundred seven million, twenty-eight thousand, six hundred eighty-one".