309436795384 has 32 divisors (see below), whose sum is σ = 599874156000. Its totient is φ = 149526483840.

The previous prime is 309436795357. The next prime is 309436795397. The reversal of 309436795384 is 483597634903.

It is a super-2 number, since 2×309436795384² (a number of 24 digits) 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 7 ways as a sum of consecutive naturals, for example, 3463932 + ... + 3552139.

It is an arithmetic number, because the mean of its divisors is an integer number (18746067375).

Almost surely, 2^309436795384 is an apocalyptic number.

It is an amenable number.

309436795384 is a deficient number, since it is larger than the sum of its proper divisors (290437360616).

309436795384 is a wasteful number, since it uses less digits than its factorization.

309436795384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7016263 (or 7016259 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 61.

The spelling of 309436795384 in words is "three hundred nine billion, four hundred thirty-six million, seven hundred ninety-five thousand, three hundred eighty-four".