72222326 has 8 divisors (see below), whose sum is σ = 118182024. Its totient is φ = 32828320.

The previous prime is 72222301. The next prime is 72222347. The reversal of 72222326 is 62322227.

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

It is a junction number, because it is equal to n+sod(n) for n = 72222295 and 72222304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641395 + ... + 1641438.

It is an arithmetic number, because the mean of its divisors is an integer number (14772753).

Almost surely, 2^72222326 is an apocalyptic number.

72222326 is a deficient number, since it is larger than the sum of its proper divisors (45959698).

72222326 is a wasteful number, since it uses less digits than its factorization.

72222326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282846.

The product of its digits is 4032, while the sum is 26.

The square root of 72222326 is about 8498.3719617348. The cubic root of 72222326 is about 416.4445252865. Note that the first 3 decimals are identical.

Subtracting from 72222326 its reverse (62322227), we obtain a palindrome (9900099).

The spelling of 72222326 in words is "seventy-two million, two hundred twenty-two thousand, three hundred twenty-six".