309590196 has 96 divisors (see below), whose sum is σ = 810311040. Its totient is φ = 91521024.

The previous prime is 309590131. The next prime is 309590201. The reversal of 309590196 is 691095903.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 253780 + ... + 254996.

It is an arithmetic number, because the mean of its divisors is an integer number (8440740).

Almost surely, 2^309590196 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 309590196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405155520).

309590196 is an abundant number, since it is smaller than the sum of its proper divisors (500720844).

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

309590196 is a wasteful number, since it uses less digits than its factorization.

309590196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313 (or 1311 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 42.

The square root of 309590196 is about 17595.1753614450. The cubic root of 309590196 is about 676.4915865750.

The spelling of 309590196 in words is "three hundred nine million, five hundred ninety thousand, one hundred ninety-six".