306989132356 has 27 divisors (see below), whose sum is σ = 539304224599. Its totient is φ = 152904485888.

The previous prime is 306989132327. The next prime is 306989132399. The reversal of 306989132356 is 653231989603.

The square root of 306989132356 is 554066.

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

It can be written as a sum of positive squares in 4 ways, for example, as 71166232900 + 235822899456 = 266770^2 + 485616^2 .

It is a super-2 number, since 2×306989132356² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 306989132297 and 306989132306.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 497550960 + ... + 497551576.

Almost surely, 2^306989132356 is an apocalyptic number.

306989132356 is the 554066-th square number.

It is an amenable number.

306989132356 is a deficient number, since it is larger than the sum of its proper divisors (232315092243).

306989132356 is an frugal number, since it uses more digits than its factorization.

306989132356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 55.

The spelling of 306989132356 in words is "three hundred six billion, nine hundred eighty-nine million, one hundred thirty-two thousand, three hundred fifty-six".