309698928036 has 135 divisors (see below), whose sum is σ = 830034702651. Its totient is φ = 100691969616.

The previous prime is 309698928013. The next prime is 309698928073. The reversal of 309698928036 is 630829896903.

The square root of 309698928036 is 556506.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 430735285 + ... + 430736003.

Almost surely, 2^309698928036 is an apocalyptic number.

309698928036 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

309698928036 is the 556506-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 309698928036

309698928036 is an abundant number, since it is smaller than the sum of its proper divisors (520335774615).

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

309698928036 is an frugal number, since it uses more digits than its factorization.

309698928036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 63.

The spelling of 309698928036 in words is "three hundred nine billion, six hundred ninety-eight million, nine hundred twenty-eight thousand, thirty-six".