72226270 has 8 divisors (see below), whose sum is σ = 130007304. Its totient is φ = 28890504.

The previous prime is 72226267. The next prime is 72226291. The reversal of 72226270 is 7262227.

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

It is a super-2 number, since 2×72226270² = 10433268156225800, which contains 22 as substring.

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, 3611304 + ... + 3611323.

It is an arithmetic number, because the mean of its divisors is an integer number (16250913).

Almost surely, 2^72226270 is an apocalyptic number.

72226270 is a deficient number, since it is larger than the sum of its proper divisors (57781034).

72226270 is a wasteful number, since it uses less digits than its factorization.

72226270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7222634.

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

The square root of 72226270 is about 8498.6040030113. The cubic root of 72226270 is about 416.4521057094.

Adding to 72226270 its reverse (7262227), we get a palindrome (79488497).

The spelling of 72226270 in words is "seventy-two million, two hundred twenty-six thousand, two hundred seventy".