72306366 has 16 divisors (see below), whose sum is σ = 157759488. Its totient is φ = 21911000.

The previous prime is 72306347. The next prime is 72306371. The reversal of 72306366 is 66360327.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547710 + ... + 547841.

It is an arithmetic number, because the mean of its divisors is an integer number (9859968).

Almost surely, 2^72306366 is an apocalyptic number.

72306366 is an abundant number, since it is smaller than the sum of its proper divisors (85453122).

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

72306366 is a wasteful number, since it uses less digits than its factorization.

72306366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095567.

The product of its (nonzero) digits is 27216, while the sum is 33.

The square root of 72306366 is about 8503.3150006336. The cubic root of 72306366 is about 416.6059916627.

The spelling of 72306366 in words is "seventy-two million, three hundred six thousand, three hundred sixty-six".