72226606 has 8 divisors (see below), whose sum is σ = 108434304. Its totient is φ = 36081840.

The previous prime is 72226577. The next prime is 72226613. The reversal of 72226606 is 60662227.

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

It is a super-2 number, since 2×72226606² = 10433365228558472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12750 + ... + 17521.

It is an arithmetic number, because the mean of its divisors is an integer number (13554288).

Almost surely, 2^72226606 is an apocalyptic number.

72226606 is a deficient number, since it is larger than the sum of its proper divisors (36207698).

72226606 is a wasteful number, since it uses less digits than its factorization.

72226606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31466.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 72226606 is about 8498.6237709408. The cubic root of 72226606 is about 416.4527514933.

The spelling of 72226606 in words is "seventy-two million, two hundred twenty-six thousand, six hundred six".