722206044 has 120 divisors (see below), whose sum is σ = 2166151680. Its totient is φ = 205537824.

The previous prime is 722206033. The next prime is 722206063. The reversal of 722206044 is 440602227.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 722205999 and 722206017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 813769 + ... + 814655.

It is an arithmetic number, because the mean of its divisors is an integer number (18051264).

Almost surely, 2^722206044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722206044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1083075840).

722206044 is an abundant number, since it is smaller than the sum of its proper divisors (1443945636).

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

722206044 is a wasteful number, since it uses less digits than its factorization.

722206044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 722206044 is about 26873.8914934179. The cubic root of 722206044 is about 897.1954026715.

The spelling of 722206044 in words is "seven hundred twenty-two million, two hundred six thousand, forty-four".