722211876 has 45 divisors (see below), whose sum is σ = 1889269921. Its totient is φ = 240576048.

The previous prime is 722211871. The next prime is 722211877. The reversal of 722211876 is 678112227.

The square root of 722211876 is 26874.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 630512100 + 91699776 = 25110^2 + 9576^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 722211876.

It is not an unprimeable number, because it can be changed into a prime (722211871) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 482986 + ... + 484478.

Almost surely, 2^722211876 is an apocalyptic number.

722211876 is the 26874-th square number.

It is an amenable number.

722211876 is an abundant number, since it is smaller than the sum of its proper divisors (1167058045).

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

722211876 is an equidigital number, since it uses as much as digits as its factorization.

722211876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002 (or 1498 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The cubic root of 722211876 is about 897.1978176930.

Multiplying 722211876 by its sum of digits (36), we get a square (25999627536 = 161244²).

722211876 divided by its sum of digits (36) gives a square (20061441 = 4479²).

The spelling of 722211876 in words is "seven hundred twenty-two million, two hundred eleven thousand, eight hundred seventy-six".