73145392 has 20 divisors (see below), whose sum is σ = 141856000. Its totient is φ = 36537408.

The previous prime is 73145381. The next prime is 73145393. The reversal of 73145392 is 29354137.

It is not an unprimeable number, because it can be changed into a prime (73145393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25234 + ... + 27982.

It is an arithmetic number, because the mean of its divisors is an integer number (7092800).

Almost surely, 2^73145392 is an apocalyptic number.

It is an amenable number.

73145392 is a deficient number, since it is larger than the sum of its proper divisors (68710608).

73145392 is a wasteful number, since it uses less digits than its factorization.

73145392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4420 (or 4414 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 73145392 is about 8552.5079362723. The cubic root of 73145392 is about 418.2111979588.

It can be divided in two parts, 73145 and 392, that added together give a palindrome (73537).

The spelling of 73145392 in words is "seventy-three million, one hundred forty-five thousand, three hundred ninety-two".