73253228 has 6 divisors (see below), whose sum is σ = 128193156. Its totient is φ = 36626612.

The previous prime is 73253149. The next prime is 73253231. The reversal of 73253228 is 82235237.

It is a junction number, because it is equal to n+sod(n) for n = 73253194 and 73253203.

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 as a sum of consecutive naturals, namely, 9156650 + ... + 9156657.

It is an arithmetic number, because the mean of its divisors is an integer number (21365526).

Almost surely, 2^73253228 is an apocalyptic number.

It is an amenable number.

73253228 is a deficient number, since it is larger than the sum of its proper divisors (54939928).

73253228 is a wasteful number, since it uses less digits than its factorization.

73253228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18313311 (or 18313309 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 73253228 is about 8558.8099640078. The cubic root of 73253228 is about 418.4166156770.

Subtracting 73253228 from its reverse (82235237), we obtain a square (8982009 = 2997²).

The spelling of 73253228 in words is "seventy-three million, two hundred fifty-three thousand, two hundred twenty-eight".