309416704 has 72 divisors (see below), whose sum is σ = 644661248. Its totient is φ = 148055040.

The previous prime is 309416683. The next prime is 309416717. The reversal of 309416704 is 407614903.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 309416704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007719 + ... + 1008025.

Almost surely, 2^309416704 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 309416704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322330624).

309416704 is an abundant number, since it is smaller than the sum of its proper divisors (335244544).

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

309416704 is a wasteful number, since it uses less digits than its factorization.

309416704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 309416704 is about 17590.2445690786. The cubic root of 309416704 is about 676.3651960429.

The spelling of 309416704 in words is "three hundred nine million, four hundred sixteen thousand, seven hundred four".