73239542 has 4 divisors (see below), whose sum is σ = 109859316. Its totient is φ = 36619770.

The previous prime is 73239527. The next prime is 73239599. The reversal of 73239542 is 24593237.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18309884 + ... + 18309887.

It is an arithmetic number, because the mean of its divisors is an integer number (27464829).

Almost surely, 2^73239542 is an apocalyptic number.

73239542 is a deficient number, since it is larger than the sum of its proper divisors (36619774).

73239542 is a wasteful number, since it uses less digits than its factorization.

73239542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36619773.

The product of its digits is 45360, while the sum is 35.

The square root of 73239542 is about 8558.0103996198. The cubic root of 73239542 is about 418.3905562726.

The spelling of 73239542 in words is "seventy-three million, two hundred thirty-nine thousand, five hundred forty-two".