72296622 has 48 divisors (see below), whose sum is σ = 161808192. Its totient is φ = 23316480.

The previous prime is 72296621. The next prime is 72296629. The reversal of 72296622 is 22669227.

72296622 is a `hidden beast` number, since 7 + 2 + 29 + 6 + 622 = 666.

It is a super-2 number, since 2×72296622² = 10453603105221768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72296621) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 81622 + ... + 82502.

It is an arithmetic number, because the mean of its divisors is an integer number (3371004).

Almost surely, 2^72296622 is an apocalyptic number.

72296622 is an abundant number, since it is smaller than the sum of its proper divisors (89511570).

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

72296622 is a wasteful number, since it uses less digits than its factorization.

72296622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033 (or 1030 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 72296622 is about 8502.7420283106. The cubic root of 72296622 is about 416.5872768922.

It can be divided in two parts, 722 and 96622, that added together give a square (97344 = 312²).

The spelling of 72296622 in words is "seventy-two million, two hundred ninety-six thousand, six hundred twenty-two".