72227362 has 4 divisors (see below), whose sum is σ = 108341046. Its totient is φ = 36113680.

The previous prime is 72227329. The next prime is 72227369. The reversal of 72227362 is 26372227.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57320041 + 14907321 = 7571^2 + 3861^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (72227369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18056839 + ... + 18056842.

Almost surely, 2^72227362 is an apocalyptic number.

72227362 is a deficient number, since it is larger than the sum of its proper divisors (36113684).

72227362 is a wasteful number, since it uses less digits than its factorization.

72227362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36113683.

The product of its digits is 14112, while the sum is 31.

The square root of 72227362 is about 8498.6682486140. The cubic root of 72227362 is about 416.4542044998.

Adding to 72227362 its reverse (26372227), we get a palindrome (98599589).

The spelling of 72227362 in words is "seventy-two million, two hundred twenty-seven thousand, three hundred sixty-two".