72270226 has 8 divisors (see below), whose sum is σ = 123891840. Its totient is φ = 30972948.

The previous prime is 72270197. The next prime is 72270241. The reversal of 72270226 is 62207227.

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 = 72270194 and 72270203.

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, 2581066 + ... + 2581093.

It is an arithmetic number, because the mean of its divisors is an integer number (15486480).

Almost surely, 2^72270226 is an apocalyptic number.

72270226 is a deficient number, since it is larger than the sum of its proper divisors (51621614).

72270226 is a wasteful number, since it uses less digits than its factorization.

72270226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5162168.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 72270226 is about 8501.1896814505. The cubic root of 72270226 is about 416.5365710823.

The spelling of 72270226 in words is "seventy-two million, two hundred seventy thousand, two hundred twenty-six".