230545220 has 24 divisors (see below), whose sum is σ = 484455384. Its totient is φ = 92158976.

The previous prime is 230545201. The next prime is 230545223. The reversal of 230545220 is 22545032.

It can be written as a sum of positive squares in 4 ways, for example, as 62220544 + 168324676 = 7888^2 + 12974^2 .

It is not an unprimeable number, because it can be changed into a prime (230545223) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 42164 + ... + 47316.

It is an arithmetic number, because the mean of its divisors is an integer number (20185641).

Almost surely, 2^230545220 is an apocalyptic number.

230545220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230545220 is an abundant number, since it is smaller than the sum of its proper divisors (253910164).

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

230545220 is a wasteful number, since it uses less digits than its factorization.

230545220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7399 (or 7397 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 230545220 is about 15183.7156190440. The cubic root of 230545220 is about 613.1763191596.

The spelling of 230545220 in words is "two hundred thirty million, five hundred forty-five thousand, two hundred twenty".