306040902 has 32 divisors (see below), whose sum is σ = 649285632. Its totient is φ = 95835264.

The previous prime is 306040901. The next prime is 306040937. The reversal of 306040902 is 209040603.

It is a super-2 number, since 2×306040902² = 187322067393947208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306040901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59443 + ... + 64385.

It is an arithmetic number, because the mean of its divisors is an integer number (20290176).

Almost surely, 2^306040902 is an apocalyptic number.

306040902 is an abundant number, since it is smaller than the sum of its proper divisors (343244730).

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

306040902 is a wasteful number, since it uses less digits than its factorization.

306040902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5572.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 306040902 is about 17494.0247513258. The cubic root of 306040902 is about 673.8964332351.

The spelling of 306040902 in words is "three hundred six million, forty thousand, nine hundred two".