306452680 has 16 divisors (see below), whose sum is σ = 689518620. Its totient is φ = 122581056.

The previous prime is 306452669. The next prime is 306452687. The reversal of 306452680 is 86254603.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 305480484 + 972196 = 17478^2 + 986^2 .

It is not an unprimeable number, because it can be changed into a prime (306452687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3830619 + ... + 3830698.

Almost surely, 2^306452680 is an apocalyptic number.

It is an amenable number.

306452680 is an abundant number, since it is smaller than the sum of its proper divisors (383065940).

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

306452680 is a wasteful number, since it uses less digits than its factorization.

306452680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7661328 (or 7661324 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 306452680 is about 17505.7898993447. The cubic root of 306452680 is about 674.1985403062.

The spelling of 306452680 in words is "three hundred six million, four hundred fifty-two thousand, six hundred eighty".