72133822 has 12 divisors (see below), whose sum is σ = 114940800. Its totient is φ = 33945056.

The previous prime is 72133811. The next prime is 72133829. The reversal of 72133822 is 22833127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72133829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61822 + ... + 62977.

It is an arithmetic number, because the mean of its divisors is an integer number (9578400).

Almost surely, 2^72133822 is an apocalyptic number.

72133822 is a deficient number, since it is larger than the sum of its proper divisors (42806978).

72133822 is a wasteful number, since it uses less digits than its factorization.

72133822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124835 (or 124818 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 72133822 is about 8493.1632505210. The cubic root of 72133822 is about 416.2743467379.

Adding to 72133822 its reverse (22833127), we get a palindrome (94966949).

It can be divided in two parts, 721 and 33822, that added together give a palindrome (34543).

The spelling of 72133822 in words is "seventy-two million, one hundred thirty-three thousand, eight hundred twenty-two".