307985874 has 40 divisors (see below), whose sum is σ = 718624560. Its totient is φ = 87991848.

The previous prime is 307985863. The next prime is 307985897. The reversal of 307985874 is 478589703.

307985874 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3717 + ... + 25095.

It is an arithmetic number, because the mean of its divisors is an integer number (17965614).

Almost surely, 2^307985874 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307985874, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359312280).

307985874 is an abundant number, since it is smaller than the sum of its proper divisors (410638686).

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

307985874 is an equidigital number, since it uses as much as digits as its factorization.

307985874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21412 (or 21391 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The square root of 307985874 is about 17549.5263183939. The cubic root of 307985874 is about 675.3210171278.

The spelling of 307985874 in words is "three hundred seven million, nine hundred eighty-five thousand, eight hundred seventy-four".