306981932840 has 32 divisors (see below), whose sum is σ = 753501108960. Its totient is φ = 111629793600.

The previous prime is 306981932837. The next prime is 306981932863. The reversal of 306981932840 is 48239189603.

It is a happy number.

It is an unprimeable number.

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, 348842666 + ... + 348843545.

It is an arithmetic number, because the mean of its divisors is an integer number (23546909655).

Almost surely, 2^306981932840 is an apocalyptic number.

It is an amenable number.

306981932840 is an abundant number, since it is smaller than the sum of its proper divisors (446519176120).

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

306981932840 is a wasteful number, since it uses less digits than its factorization.

306981932840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697686233 (or 697686229 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 53.

The spelling of 306981932840 in words is "three hundred six billion, nine hundred eighty-one million, nine hundred thirty-two thousand, eight hundred forty".