722228808 has 32 divisors (see below), whose sum is σ = 2063511360. Its totient is φ = 206351040.

The previous prime is 722228803. The next prime is 722228813. The reversal of 722228808 is 808822227.

It is an interprime number because it is at equal distance from previous prime (722228803) and next prime (722228813).

It is a super-2 number, since 2×722228808² = 1043228902210201728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (722228803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2149323 + ... + 2149658.

It is an arithmetic number, because the mean of its divisors is an integer number (64484730).

Almost surely, 2^722228808 is an apocalyptic number.

It is an amenable number.

722228808 is an abundant number, since it is smaller than the sum of its proper divisors (1341282552).

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

722228808 is a wasteful number, since it uses less digits than its factorization.

722228808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298997 (or 4298993 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 722228808 is about 26874.3150238290. The cubic root of 722228808 is about 897.2048291326.

The spelling of 722228808 in words is "seven hundred twenty-two million, two hundred twenty-eight thousand, eight hundred eight".