642230106 has 32 divisors (see below), whose sum is σ = 1476976128. Its totient is φ = 182366640.

The previous prime is 642230093. The next prime is 642230111. The reversal of 642230106 is 601032246.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40060 + ... + 53751.

It is an arithmetic number, because the mean of its divisors is an integer number (46155504).

Almost surely, 2^642230106 is an apocalyptic number.

642230106 is an abundant number, since it is smaller than the sum of its proper divisors (834746022).

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

642230106 is a wasteful number, since it uses less digits than its factorization.

642230106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93986.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 642230106 is about 25342.2592915470. The cubic root of 642230106 is about 862.7736776541.

The spelling of 642230106 in words is "six hundred forty-two million, two hundred thirty thousand, one hundred six".