309368696 has 96 divisors (see below), whose sum is σ = 727403040. Its totient is φ = 120766464.

The previous prime is 309368663. The next prime is 309368701. The reversal of 309368696 is 696863903.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 917840 + ... + 918176.

It is an arithmetic number, because the mean of its divisors is an integer number (7577115).

Almost surely, 2^309368696 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 309368696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363701520).

309368696 is an abundant number, since it is smaller than the sum of its proper divisors (418034344).

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

309368696 is a wasteful number, since it uses less digits than its factorization.

309368696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 50.

The square root of 309368696 is about 17588.8798961162. The cubic root of 309368696 is about 676.3302134241.

The spelling of 309368696 in words is "three hundred nine million, three hundred sixty-eight thousand, six hundred ninety-six".