73272212 has 24 divisors (see below), whose sum is σ = 142854600. Its totient is φ = 32651136.

The previous prime is 73272211. The next prime is 73272229. The reversal of 73272212 is 21227237.

It can be written as a sum of positive squares in 4 ways, for example, as 6130576 + 67141636 = 2476^2 + 8194^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73272211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22787 + ... + 25802.

It is an arithmetic number, because the mean of its divisors is an integer number (5952275).

Almost surely, 2^73272212 is an apocalyptic number.

It is an amenable number.

73272212 is a deficient number, since it is larger than the sum of its proper divisors (69582388).

73272212 is a wasteful number, since it uses less digits than its factorization.

73272212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48635 (or 48633 counting only the distinct ones).

The product of its digits is 2352, while the sum is 26.

The square root of 73272212 is about 8559.9189248497. The cubic root of 73272212 is about 418.4527575880.

Adding to 73272212 its reverse (21227237), we get a palindrome (94499449).

The spelling of 73272212 in words is "seventy-three million, two hundred seventy-two thousand, two hundred twelve".