73244228 has 24 divisors (see below), whose sum is σ = 136647000. Its totient is φ = 34231808.

The previous prime is 73244207. The next prime is 73244231. The reversal of 73244228 is 82244237.

It can be written as a sum of positive squares in 4 ways, for example, as 29789764 + 43454464 = 5458^2 + 6592^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73244194 and 73244203.

It is an unprimeable number.

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, 6518 + ... + 13746.

It is an arithmetic number, because the mean of its divisors is an integer number (5693625).

Almost surely, 2^73244228 is an apocalyptic number.

It is an amenable number.

73244228 is a deficient number, since it is larger than the sum of its proper divisors (63402772).

73244228 is a wasteful number, since it uses less digits than its factorization.

73244228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7399 (or 7397 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 73244228 is about 8558.2841738283. The cubic root of 73244228 is about 418.3994792136.

Subtracting 73244228 from its reverse (82244237), we obtain a palindrome (9000009).

The spelling of 73244228 in words is "seventy-three million, two hundred forty-four thousand, two hundred twenty-eight".