722671212 has 12 divisors (see below), whose sum is σ = 1686232856. Its totient is φ = 240890400.

The previous prime is 722671211. The next prime is 722671219. The reversal of 722671212 is 212176227.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 722671212.

It is not an unprimeable number, because it can be changed into a prime (722671211) 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, 30111289 + ... + 30111312.

Almost surely, 2^722671212 is an apocalyptic number.

It is an amenable number.

722671212 is an abundant number, since it is smaller than the sum of its proper divisors (963561644).

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

722671212 is a wasteful number, since it uses less digits than its factorization.

722671212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60222608 (or 60222606 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 722671212 is about 26882.5447456151. The cubic root of 722671212 is about 897.3879871484.

The spelling of 722671212 in words is "seven hundred twenty-two million, six hundred seventy-one thousand, two hundred twelve".