72572212 has 12 divisors (see below), whose sum is σ = 128532096. Its totient is φ = 35848760.

The previous prime is 72572197. The next prime is 72572219. The reversal of 72572212 is 21227527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72572219) 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 3 ways as a sum of consecutive naturals, for example, 108964 + ... + 109627.

It is an arithmetic number, because the mean of its divisors is an integer number (10711008).

Almost surely, 2^72572212 is an apocalyptic number.

It is an amenable number.

72572212 is a deficient number, since it is larger than the sum of its proper divisors (55959884).

72572212 is a wasteful number, since it uses less digits than its factorization.

72572212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218678 (or 218676 counting only the distinct ones).

The product of its digits is 3920, while the sum is 28.

The square root of 72572212 is about 8518.9325622404. The cubic root of 72572212 is about 417.1159402115.

Adding to 72572212 its reverse (21227527), we get a palindrome (93799739).

The spelling of 72572212 in words is "seventy-two million, five hundred seventy-two thousand, two hundred twelve".