72254222 has 8 divisors (see below), whose sum is σ = 108441696. Its totient is φ = 36106992.

The previous prime is 72254209. The next prime is 72254227. The reversal of 72254222 is 22245227.

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 = 72254191 and 72254200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72254227) by changing a digit.

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, 5078 + ... + 13049.

It is an arithmetic number, because the mean of its divisors is an integer number (13555212).

Almost surely, 2^72254222 is an apocalyptic number.

72254222 is a deficient number, since it is larger than the sum of its proper divisors (36187474).

72254222 is a wasteful number, since it uses less digits than its factorization.

72254222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20122.

The product of its digits is 4480, while the sum is 26.

The square root of 72254222 is about 8500.2483493131. The cubic root of 72254222 is about 416.5058219353.

Adding to 72254222 its reverse (22245227), we get a palindrome (94499449).

The spelling of 72254222 in words is "seventy-two million, two hundred fifty-four thousand, two hundred twenty-two".