307896216 has 128 divisors (see below), whose sum is σ = 873676800. Its totient is φ = 89907840.

The previous prime is 307896191. The next prime is 307896233. The reversal of 307896216 is 612698703.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324655 + ... + 325601.

It is an arithmetic number, because the mean of its divisors is an integer number (6825600).

Almost surely, 2^307896216 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 307896216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436838400).

307896216 is an abundant number, since it is smaller than the sum of its proper divisors (565780584).

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

307896216 is a wasteful number, since it uses less digits than its factorization.

307896216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 307896216 is about 17546.9717045421. The cubic root of 307896216 is about 675.2554796977.

The spelling of 307896216 in words is "three hundred seven million, eight hundred ninety-six thousand, two hundred sixteen".