728333622 has 24 divisors (see below), whose sum is σ = 1578751200. Its totient is φ = 242670960.

The previous prime is 728333609. The next prime is 728333657. The reversal of 728333622 is 226333827.

It is a happy number.

728333622 is a `hidden beast` number, since 7 + 28 + 3 + 3 + 3 + 622 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40504 + ... + 55652.

It is an arithmetic number, because the mean of its divisors is an integer number (65781300).

Almost surely, 2^728333622 is an apocalyptic number.

728333622 is an abundant number, since it is smaller than the sum of its proper divisors (850417578).

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

728333622 is a wasteful number, since it uses less digits than its factorization.

728333622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17828 (or 17825 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 728333622 is about 26987.6568453062. The cubic root of 728333622 is about 899.7256867703.

The spelling of 728333622 in words is "seven hundred twenty-eight million, three hundred thirty-three thousand, six hundred twenty-two".