72306043 has 8 divisors (see below), whose sum is σ = 77884416. Its totient is φ = 66930600.

The previous prime is 72305983. The next prime is 72306067. The reversal of 72306043 is 34060327.

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

It is a cyclic number.

It is not a de Polignac number, because 72306043 - 2⁹ = 72305531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72305999 and 72306017.

It is not an unprimeable number, because it can be changed into a prime (72306643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49993 + ... + 51418.

It is an arithmetic number, because the mean of its divisors is an integer number (9735552).

Almost surely, 2^72306043 is an apocalyptic number.

72306043 is a deficient number, since it is larger than the sum of its proper divisors (5578373).

72306043 is a wasteful number, since it uses less digits than its factorization.

72306043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101465.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 72306043 is about 8503.2960080195. The cubic root of 72306043 is about 416.6053713211.

The spelling of 72306043 in words is "seventy-two million, three hundred six thousand, forty-three".