306990117 has 24 divisors (see below), whose sum is σ = 523128320. Its totient is φ = 169763040.

The previous prime is 306990109. The next prime is 306990119. The reversal of 306990117 is 711099603.

It is not a de Polignac number, because 306990117 - 2³ = 306990109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306990119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76642 + ... + 80547.

Almost surely, 2^306990117 is an apocalyptic number.

It is an amenable number.

306990117 is a deficient number, since it is larger than the sum of its proper divisors (216138203).

306990117 is a wasteful number, since it uses less digits than its factorization.

306990117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157233 (or 157230 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 306990117 is about 17521.1334393640. The cubic root of 306990117 is about 674.5924321476.

The spelling of 306990117 in words is "three hundred six million, nine hundred ninety thousand, one hundred seventeen".