309474790804 has 6 divisors (see below), whose sum is σ = 541580883914. Its totient is φ = 154737395400.

The previous prime is 309474790787. The next prime is 309474790829. The reversal of 309474790804 is 408097474903.

It can be written as a sum of positive squares in only one way, i.e., 174976563204 + 134498227600 = 418302^2 + 366740^2 .

It is a super-2 number, since 2×309474790804² (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 as a sum of consecutive naturals, namely, 38684348847 + ... + 38684348854.

Almost surely, 2^309474790804 is an apocalyptic number.

It is an amenable number.

309474790804 is a deficient number, since it is larger than the sum of its proper divisors (232106093110).

309474790804 is a wasteful number, since it uses less digits than its factorization.

309474790804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77368697705 (or 77368697703 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 309474790804 in words is "three hundred nine billion, four hundred seventy-four million, seven hundred ninety thousand, eight hundred four".