631627422 has 8 divisors (see below), whose sum is σ = 1263254856. Its totient is φ = 210542472.

The previous prime is 631627421. The next prime is 631627429. The reversal of 631627422 is 224726136.

It is a sphenic number, since it is the product of 3 distinct primes.

631627422 is an admirable number.

It is a Smith number, since the sum of its digits (33) 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 not an unprimeable number, because it can be changed into a prime (631627421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52635613 + ... + 52635624.

It is an arithmetic number, because the mean of its divisors is an integer number (157906857).

Almost surely, 2^631627422 is an apocalyptic number.

631627422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

631627422 is a wasteful number, since it uses less digits than its factorization.

631627422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105271242.

The product of its digits is 24192, while the sum is 33.

The square root of 631627422 is about 25132.1989089693. The cubic root of 631627422 is about 857.9994158906. Note that the first 3 decimals are identical.

The spelling of 631627422 in words is "six hundred thirty-one million, six hundred twenty-seven thousand, four hundred twenty-two".