72302542 has 16 divisors (see below), whose sum is σ = 116992512. Its totient is φ = 33314400.

The previous prime is 72302533. The next prime is 72302561. The reversal of 72302542 is 24520327.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16243 + ... + 20209.

It is an arithmetic number, because the mean of its divisors is an integer number (7312032).

Almost surely, 2^72302542 is an apocalyptic number.

72302542 is a deficient number, since it is larger than the sum of its proper divisors (44689970).

72302542 is a wasteful number, since it uses less digits than its factorization.

72302542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4683.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 72302542 is about 8503.0901441770. The cubic root of 72302542 is about 416.5986473145.

Adding to 72302542 its reverse (24520327), we get a palindrome (96822869).

The spelling of 72302542 in words is "seventy-two million, three hundred two thousand, five hundred forty-two".