306996620 has 48 divisors (see below), whose sum is σ = 741787200. Its totient is φ = 104542464.

The previous prime is 306996619. The next prime is 306996629. The reversal of 306996620 is 26699603.

It is not an unprimeable number, because it can be changed into a prime (306996629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13502 + ... + 28218.

It is an arithmetic number, because the mean of its divisors is an integer number (15453900).

Almost surely, 2^306996620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 306996620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370893600).

306996620 is an abundant number, since it is smaller than the sum of its proper divisors (434790580).

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

306996620 is a wasteful number, since it uses less digits than its factorization.

306996620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14882 (or 14880 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 306996620 is about 17521.3190142752. The cubic root of 306996620 is about 674.5971954319.

The spelling of 306996620 in words is "three hundred six million, nine hundred ninety-six thousand, six hundred twenty".