72327492 has 36 divisors (see below), whose sum is σ = 189601776. Its totient is φ = 24108840.

The previous prime is 72327491. The next prime is 72327511. The reversal of 72327492 is 29472327.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is not an unprimeable number, because it can be changed into a prime (72327491) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 36234 + ... + 38177.

It is an arithmetic number, because the mean of its divisors is an integer number (5266716).

Almost surely, 2^72327492 is an apocalyptic number.

It is an amenable number.

72327492 is an abundant number, since it is smaller than the sum of its proper divisors (117274284).

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

72327492 is a wasteful number, since it uses less digits than its factorization.

72327492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74430 (or 74416 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 72327492 is about 8504.5571313267. The cubic root of 72327492 is about 416.6465614477.

The spelling of 72327492 in words is "seventy-two million, three hundred twenty-seven thousand, four hundred ninety-two".