722290898 has 32 divisors (see below), whose sum is σ = 1253387520. Its totient is φ = 305778240.

The previous prime is 722290889. The next prime is 722290931. The reversal of 722290898 is 898092227.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767108 + ... + 768048.

It is an arithmetic number, because the mean of its divisors is an integer number (39168360).

Almost surely, 2^722290898 is an apocalyptic number.

722290898 is a deficient number, since it is larger than the sum of its proper divisors (531096622).

722290898 is a wasteful number, since it uses less digits than its factorization.

722290898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 722290898 is about 26875.4701912357. The cubic root of 722290898 is about 897.2305392911.

The spelling of 722290898 in words is "seven hundred twenty-two million, two hundred ninety thousand, eight hundred ninety-eight".