306998132 has 36 divisors (see below), whose sum is σ = 626844960. Its totient is φ = 131174064.

The previous prime is 306998123. The next prime is 306998161. The reversal of 306998132 is 231899603.

It is a self number, because there is not a number n which added to its sum of digits gives 306998132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68183 + ... + 72545.

It is an arithmetic number, because the mean of its divisors is an integer number (17412360).

Almost surely, 2^306998132 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 306998132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313422480).

306998132 is an abundant number, since it is smaller than the sum of its proper divisors (319846828).

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

306998132 is a wasteful number, since it uses less digits than its factorization.

306998132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740 (or 4731 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 306998132 is about 17521.3621616586. The cubic root of 306998132 is about 674.5983029244.

The spelling of 306998132 in words is "three hundred six million, nine hundred ninety-eight thousand, one hundred thirty-two".