642370230 has 32 divisors (see below), whose sum is σ = 1712988000. Its totient is φ = 171298656.

The previous prime is 642370219. The next prime is 642370231. The reversal of 642370230 is 32073246.

642370230 is a `hidden beast` number, since 6 + 423 + 7 + 0 + 230 = 666.

642370230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 642370194 and 642370203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642370231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1189305 + ... + 1189844.

It is an arithmetic number, because the mean of its divisors is an integer number (53530875).

Almost surely, 2^642370230 is an apocalyptic number.

642370230 is an abundant number, since it is smaller than the sum of its proper divisors (1070617770).

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

642370230 is a wasteful number, since it uses less digits than its factorization.

642370230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379165 (or 2379159 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 642370230 is about 25345.0237719360. The cubic root of 642370230 is about 862.8364207459.

The spelling of 642370230 in words is "six hundred forty-two million, three hundred seventy thousand, two hundred thirty".