722822898 has 64 divisors (see below), whose sum is σ = 1796698368. Its totient is φ = 189112320.

The previous prime is 722822887. The next prime is 722822959. The reversal of 722822898 is 898228227.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12738 + ... + 40098.

It is an arithmetic number, because the mean of its divisors is an integer number (28073412).

Almost surely, 2^722822898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722822898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (898349184).

722822898 is an abundant number, since it is smaller than the sum of its proper divisors (1073875470).

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

722822898 is a wasteful number, since it uses less digits than its factorization.

722822898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27427.

The product of its digits is 516096, while the sum is 48.

The square root of 722822898 is about 26885.3658706740. The cubic root of 722822898 is about 897.4507688899.

The spelling of 722822898 in words is "seven hundred twenty-two million, eight hundred twenty-two thousand, eight hundred ninety-eight".