72454566 has 8 divisors (see below), whose sum is σ = 144909144. Its totient is φ = 24151520.

The previous prime is 72454559. The next prime is 72454579. The reversal of 72454566 is 66545427.

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

72454566 is an admirable number.

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, 6037875 + ... + 6037886.

It is an arithmetic number, because the mean of its divisors is an integer number (18113643).

Almost surely, 2^72454566 is an apocalyptic number.

72454566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72454566 is a wasteful number, since it uses less digits than its factorization.

72454566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12075766.

The product of its digits is 201600, while the sum is 39.

The square root of 72454566 is about 8512.0247884977. The cubic root of 72454566 is about 416.8904243143.

It can be divided in two parts, 7245 and 4566, that added together give a palindrome (11811).

The spelling of 72454566 in words is "seventy-two million, four hundred fifty-four thousand, five hundred sixty-six".