309907052422 has 16 divisors (see below), whose sum is σ = 518914135872. Its totient is φ = 137590868520.

The previous prime is 309907052419. The next prime is 309907052423. The reversal of 309907052422 is 224250709903.

It is a super-2 number, since 2×309907052422² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309907052423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163797708 + ... + 163799599.

It is an arithmetic number, because the mean of its divisors is an integer number (32432133492).

Almost surely, 2^309907052422 is an apocalyptic number.

309907052422 is a deficient number, since it is larger than the sum of its proper divisors (209007083450).

309907052422 is a wasteful number, since it uses less digits than its factorization.

309907052422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327597363.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 309907052422 in words is "three hundred nine billion, nine hundred seven million, fifty-two thousand, four hundred twenty-two".