72943032 has 16 divisors (see below), whose sum is σ = 182357640. Its totient is φ = 24314336.

The previous prime is 72943019. The next prime is 72943043. The reversal of 72943032 is 23034927.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519623 + ... + 1519670.

Almost surely, 2^72943032 is an apocalyptic number.

It is an amenable number.

72943032 is an abundant number, since it is smaller than the sum of its proper divisors (109414608).

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

72943032 is a wasteful number, since it uses less digits than its factorization.

72943032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039302 (or 3039298 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 72943032 is about 8540.6692946162. The cubic root of 72943032 is about 417.8251750922.

Adding to 72943032 its reverse (23034927), we get a palindrome (95977959).

The spelling of 72943032 in words is "seventy-two million, nine hundred forty-three thousand, thirty-two".