72324542 has 8 divisors (see below), whose sum is σ = 110533896. Its totient is φ = 35479912.

The previous prime is 72324541. The next prime is 72324547. The reversal of 72324542 is 24542327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72324541) 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, 341048 + ... + 341259.

It is an arithmetic number, because the mean of its divisors is an integer number (13816737).

Almost surely, 2^72324542 is an apocalyptic number.

72324542 is a deficient number, since it is larger than the sum of its proper divisors (38209354).

72324542 is a wasteful number, since it uses less digits than its factorization.

72324542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682362.

The product of its digits is 13440, while the sum is 29.

The square root of 72324542 is about 8504.3836931314. The cubic root of 72324542 is about 416.6408968240.

Adding to 72324542 its reverse (24542327), we get a palindrome (96866869).

The spelling of 72324542 in words is "seventy-two million, three hundred twenty-four thousand, five hundred forty-two".