309420094437 has 12 divisors (see below), whose sum is σ = 446961977280. Its totient is φ = 206269982568.

The previous prime is 309420094433. The next prime is 309420094453. The reversal of 309420094437 is 734490024903.

309420094437 is a `hidden beast` number, since 3 + 0 + 9 + 4 + 200 + 9 + 4 + 437 = 666.

It is not a de Polignac number, because 309420094437 - 2² = 309420094433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 309420094392 and 309420094401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309420094433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 643203 + ... + 1016144.

It is an arithmetic number, because the mean of its divisors is an integer number (37246831440).

Almost surely, 2^309420094437 is an apocalyptic number.

It is an amenable number.

309420094437 is a deficient number, since it is larger than the sum of its proper divisors (137541882843).

309420094437 is a wasteful number, since it uses less digits than its factorization.

309420094437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680072 (or 1680069 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 309420094437 in words is "three hundred nine billion, four hundred twenty million, ninety-four thousand, four hundred thirty-seven".