306940627780 has 12 divisors (see below), whose sum is σ = 644575318380. Its totient is φ = 122776251104.

The previous prime is 306940627757. The next prime is 306940627781. The reversal of 306940627780 is 87726049603.

It can be written as a sum of positive squares in 2 ways, for example, as 220531673664 + 86408954116 = 469608^2 + 293954^2 .

It is not an unprimeable number, because it can be changed into a prime (306940627781) 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 3 ways as a sum of consecutive naturals, for example, 7673515675 + ... + 7673515714.

It is an arithmetic number, because the mean of its divisors is an integer number (53714609865).

Almost surely, 2^306940627780 is an apocalyptic number.

It is an amenable number.

306940627780 is an abundant number, since it is smaller than the sum of its proper divisors (337634690600).

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

306940627780 is a wasteful number, since it uses less digits than its factorization.

306940627780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15347031398 (or 15347031396 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 306940627780 in words is "three hundred six billion, nine hundred forty million, six hundred twenty-seven thousand, seven hundred eighty".