722144046 has 32 divisors (see below), whose sum is σ = 1558972800. Its totient is φ = 221685984.

The previous prime is 722143999. The next prime is 722144081. The reversal of 722144046 is 640441227.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24105 + ... + 45003.

It is an arithmetic number, because the mean of its divisors is an integer number (48717900).

Almost surely, 2^722144046 is an apocalyptic number.

722144046 is an abundant number, since it is smaller than the sum of its proper divisors (836828754).

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

722144046 is a wasteful number, since it uses less digits than its factorization.

722144046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21360.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 722144046 is about 26872.7379699204. The cubic root of 722144046 is about 897.1697285983.

The spelling of 722144046 in words is "seven hundred twenty-two million, one hundred forty-four thousand, forty-six".