632421222 has 16 divisors (see below), whose sum is σ = 1272155760. Its totient is φ = 209588192.

The previous prime is 632421217. The next prime is 632421247. The reversal of 632421222 is 222124236.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 632421192 and 632421201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303597 + ... + 305672.

It is an arithmetic number, because the mean of its divisors is an integer number (79509735).

Almost surely, 2^632421222 is an apocalyptic number.

632421222 is an abundant number, since it is smaller than the sum of its proper divisors (639734538).

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

632421222 is a wasteful number, since it uses less digits than its factorization.

632421222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609447.

The product of its digits is 2304, while the sum is 24.

The square root of 632421222 is about 25147.9864402699. The cubic root of 632421222 is about 858.3586966919.

Adding to 632421222 its reverse (222124236), we get a palindrome (854545458).

The spelling of 632421222 in words is "six hundred thirty-two million, four hundred twenty-one thousand, two hundred twenty-two".