230556420 has 36 divisors (see below), whose sum is σ = 699355020. Its totient is φ = 61481664.

The previous prime is 230556419. The next prime is 230556427. The reversal of 230556420 is 24655032.

230556420 is a `hidden beast` number, since 230 + 5 + 5 + 6 + 420 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 173765124 + 56791296 = 13182^2 + 7536^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (230556427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640255 + ... + 640614.

Almost surely, 2^230556420 is an apocalyptic number.

230556420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230556420 is an abundant number, since it is smaller than the sum of its proper divisors (468798600).

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

230556420 is a wasteful number, since it uses less digits than its factorization.

230556420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280884 (or 1280879 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 230556420 is about 15184.0844307452. The cubic root of 230556420 is about 613.1862484677.

The spelling of 230556420 in words is "two hundred thirty million, five hundred fifty-six thousand, four hundred twenty".