309241296 has 120 divisors (see below), whose sum is σ = 1065209600. Its totient is φ = 81554688.

The previous prime is 309241277. The next prime is 309241333. The reversal of 309241296 is 692142903.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 309241296.

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, 1305 + ... + 24903.

Almost surely, 2^309241296 is an apocalyptic number.

309241296 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 309241296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532604800).

309241296 is an abundant number, since it is smaller than the sum of its proper divisors (755968304).

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

309241296 is a wasteful number, since it uses less digits than its factorization.

309241296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23633 (or 23624 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 309241296 is about 17585.2579167893. The cubic root of 309241296 is about 676.2373616470.

The spelling of 309241296 in words is "three hundred nine million, two hundred forty-one thousand, two hundred ninety-six".