722423212 has 24 divisors (see below), whose sum is σ = 1466415104. Its totient is φ = 304988112.

The previous prime is 722423203. The next prime is 722423227. The reversal of 722423212 is 212324227.

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, 190668 + ... + 194419.

Almost surely, 2^722423212 is an apocalyptic number.

It is an amenable number.

722423212 is an abundant number, since it is smaller than the sum of its proper divisors (743991892).

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

722423212 is a wasteful number, since it uses less digits than its factorization.

722423212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385165 (or 385163 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 722423212 is about 26877.9316912593. The cubic root of 722423212 is about 897.2853228110.

Adding to 722423212 its reverse (212324227), we get a palindrome (934747439).

The spelling of 722423212 in words is "seven hundred twenty-two million, four hundred twenty-three thousand, two hundred twelve".