72223626 has 8 divisors (see below), whose sum is σ = 144447264. Its totient is φ = 24074540.

The previous prime is 72223597. The next prime is 72223639. The reversal of 72223626 is 62632227.

It is a sphenic number, since it is the product of 3 distinct primes.

72223626 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 72223593 and 72223602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6018630 + ... + 6018641.

It is an arithmetic number, because the mean of its divisors is an integer number (18055908).

Almost surely, 2^72223626 is an apocalyptic number.

72223626 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72223626 is a wasteful number, since it uses less digits than its factorization.

72223626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12037276.

The product of its digits is 12096, while the sum is 30.

The square root of 72223626 is about 8498.4484466284. The cubic root of 72223626 is about 416.4470239351.

The spelling of 72223626 in words is "seventy-two million, two hundred twenty-three thousand, six hundred twenty-six".