72818306 has 8 divisors (see below), whose sum is σ = 119157264. Its totient is φ = 33099220.

The previous prime is 72818267. The next prime is 72818309. The reversal of 72818306 is 60381827.

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

It is not an unprimeable number, because it can be changed into a prime (72818309) 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, 1654940 + ... + 1654983.

It is an arithmetic number, because the mean of its divisors is an integer number (14894658).

Almost surely, 2^72818306 is an apocalyptic number.

72818306 is a deficient number, since it is larger than the sum of its proper divisors (46338958).

72818306 is a wasteful number, since it uses less digits than its factorization.

72818306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309936.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 72818306 is about 8533.3642837980. The cubic root of 72818306 is about 417.5868914488.

The spelling of 72818306 in words is "seventy-two million, eight hundred eighteen thousand, three hundred six".