73321288 has 16 divisors (see below), whose sum is σ = 137659500. Its totient is φ = 36612096.

The previous prime is 73321219. The next prime is 73321301. The reversal of 73321288 is 88212337.

It can be written as a sum of positive squares in 2 ways, for example, as 71876484 + 1444804 = 8478^2 + 1202^2 .

It is a super-2 number, since 2×73321288² = 10752022547957888, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 808 + ... + 12136.

Almost surely, 2^73321288 is an apocalyptic number.

It is an amenable number.

73321288 is a deficient number, since it is larger than the sum of its proper divisors (64338212).

73321288 is a wasteful number, since it uses less digits than its factorization.

73321288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12144 (or 12140 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 73321288 is about 8562.7850609483. The cubic root of 73321288 is about 418.5461600018.

The spelling of 73321288 in words is "seventy-three million, three hundred twenty-one thousand, two hundred eighty-eight".