73138384 has 20 divisors (see below), whose sum is σ = 154588320. Its totient is φ = 33244640.

The previous prime is 73138363. The next prime is 73138421. The reversal of 73138384 is 48383137.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207604 + ... + 207955.

It is an arithmetic number, because the mean of its divisors is an integer number (7729416).

Almost surely, 2^73138384 is an apocalyptic number.

It is an amenable number.

73138384 is an abundant number, since it is smaller than the sum of its proper divisors (81449936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73138384 is a wasteful number, since it uses less digits than its factorization.

73138384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415578 (or 415572 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 73138384 is about 8552.0982220739. The cubic root of 73138384 is about 418.1978413749.

The spelling of 73138384 in words is "seventy-three million, one hundred thirty-eight thousand, three hundred eighty-four".