73244128 has 12 divisors (see below), whose sum is σ = 144199440. Its totient is φ = 36622048.

The previous prime is 73244123. The next prime is 73244131. The reversal of 73244128 is 82144237.

It is a self number, because there is not a number n which added to its sum of digits gives 73244128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73244123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1144408 + ... + 1144471.

It is an arithmetic number, because the mean of its divisors is an integer number (12016620).

Almost surely, 2^73244128 is an apocalyptic number.

It is an amenable number.

73244128 is a deficient number, since it is larger than the sum of its proper divisors (70955312).

73244128 is a wasteful number, since it uses less digits than its factorization.

73244128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288889 (or 2288881 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 73244128 is about 8558.2783315337. The cubic root of 73244128 is about 418.3992888006.

The spelling of 73244128 in words is "seventy-three million, two hundred forty-four thousand, one hundred twenty-eight".