630572422 has 4 divisors (see below), whose sum is σ = 945858636. Its totient is φ = 315286210.

The previous prime is 630572413. The next prime is 630572447. The reversal of 630572422 is 224275036.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157643104 + ... + 157643107.

It is an arithmetic number, because the mean of its divisors is an integer number (236464659).

Almost surely, 2^630572422 is an apocalyptic number.

630572422 is a deficient number, since it is larger than the sum of its proper divisors (315286214).

630572422 is a wasteful number, since it uses less digits than its factorization.

630572422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315286213.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 630572422 is about 25111.2011261907. The cubic root of 630572422 is about 857.5214474997.

The spelling of 630572422 in words is "six hundred thirty million, five hundred seventy-two thousand, four hundred twenty-two".