73142288 has 20 divisors (see below), whose sum is σ = 142072380. Its totient is φ = 36478464.

The previous prime is 73142273. The next prime is 73142297. The reversal of 73142288 is 88224137.

It can be written as a sum of positive squares in 2 ways, for example, as 65480464 + 7661824 = 8092^2 + 2768^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956 + ... + 12132.

It is an arithmetic number, because the mean of its divisors is an integer number (7103619).

Almost surely, 2^73142288 is an apocalyptic number.

It is an amenable number.

73142288 is a deficient number, since it is larger than the sum of its proper divisors (68930092).

73142288 is a wasteful number, since it uses less digits than its factorization.

73142288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11594 (or 11588 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 73142288 is about 8552.3264671082. The cubic root of 73142288 is about 418.2052821342.

The spelling of 73142288 in words is "seventy-three million, one hundred forty-two thousand, two hundred eighty-eight".