306853980 has 24 divisors (see below), whose sum is σ = 859191312. Its totient is φ = 81827712.

The previous prime is 306853957. The next prime is 306853991. The reversal of 306853980 is 89358603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2557057 + ... + 2557176.

It is an arithmetic number, because the mean of its divisors is an integer number (35799638).

Almost surely, 2^306853980 is an apocalyptic number.

306853980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

306853980 is an abundant number, since it is smaller than the sum of its proper divisors (552337332).

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

306853980 is a wasteful number, since it uses less digits than its factorization.

306853980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5114245 (or 5114243 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 306853980 is about 17517.2480715437. The cubic root of 306853980 is about 674.4926997638.

The spelling of 306853980 in words is "three hundred six million, eight hundred fifty-three thousand, nine hundred eighty".