72223662 has 16 divisors (see below), whose sum is σ = 165082752. Its totient is φ = 20635320.

The previous prime is 72223661. The next prime is 72223681. The reversal of 72223662 is 26632227.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72223661) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 859764 + ... + 859847.

It is an arithmetic number, because the mean of its divisors is an integer number (10317672).

Almost surely, 2^72223662 is an apocalyptic number.

72223662 is an abundant number, since it is smaller than the sum of its proper divisors (92859090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72223662 is a wasteful number, since it uses less digits than its factorization.

72223662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719623.

The product of its digits is 12096, while the sum is 30.

The square root of 72223662 is about 8498.4505646618. The cubic root of 72223662 is about 416.4470931280.

Adding to 72223662 its reverse (26632227), we get a palindrome (98855889).

The spelling of 72223662 in words is "seventy-two million, two hundred twenty-three thousand, six hundred sixty-two".