307612420 has 24 divisors (see below), whose sum is σ = 646348248. Its totient is φ = 122976000.

The previous prime is 307612369. The next prime is 307612423. The reversal of 307612420 is 24216703.

It can be written as a sum of positive squares in 4 ways, for example, as 30976 + 307581444 = 176^2 + 17538^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (307612423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47370 + ... + 53470.

It is an arithmetic number, because the mean of its divisors is an integer number (26931177).

Almost surely, 2^307612420 is an apocalyptic number.

It is an amenable number.

307612420 is an abundant number, since it is smaller than the sum of its proper divisors (338735828).

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

307612420 is a wasteful number, since it uses less digits than its factorization.

307612420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8631 (or 8629 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 307612420 is about 17538.8830887260. The cubic root of 307612420 is about 675.0479490401.

The spelling of 307612420 in words is "three hundred seven million, six hundred twelve thousand, four hundred twenty".