309224796 has 48 divisors (see below), whose sum is σ = 748272000. Its totient is φ = 99271872.

The previous prime is 309224789. The next prime is 309224801. The reversal of 309224796 is 697422903.

It is a happy number.

It is a super-2 number, since 2×309224796² = 191239948922483232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181155 + ... + 182853.

It is an arithmetic number, because the mean of its divisors is an integer number (15589000).

Almost surely, 2^309224796 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 309224796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374136000).

309224796 is an abundant number, since it is smaller than the sum of its proper divisors (439047204).

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

309224796 is a wasteful number, since it uses less digits than its factorization.

309224796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258 (or 2256 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 309224796 is about 17584.7887675684. The cubic root of 309224796 is about 676.2253342377.

The spelling of 309224796 in words is "three hundred nine million, two hundred twenty-four thousand, seven hundred ninety-six".