722132216 has 16 divisors (see below), whose sum is σ = 1458151800. Its totient is φ = 333291744.

The previous prime is 722132207. The next prime is 722132309. The reversal of 722132216 is 612231227.

It is a super-4 number, since 4×722132216⁴ (a number of 37 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3471686 + ... + 3471893.

Almost surely, 2^722132216 is an apocalyptic number.

It is an amenable number.

722132216 is an abundant number, since it is smaller than the sum of its proper divisors (736019584).

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

722132216 is a wasteful number, since it uses less digits than its factorization.

722132216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6943598 (or 6943594 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 722132216 is about 26872.5178574692. The cubic root of 722132216 is about 897.1648294946.

The spelling of 722132216 in words is "seven hundred twenty-two million, one hundred thirty-two thousand, two hundred sixteen".