22728304478 has 8 divisors (see below), whose sum is σ = 37191771000. Its totient is φ = 10331047480.

The previous prime is 22728304477. The next prime is 22728304481. The reversal of 22728304478 is 87440382722.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22728304471) 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, 516552353 + ... + 516552396.

It is an arithmetic number, because the mean of its divisors is an integer number (4648971375).

Almost surely, 2^22728304478 is an apocalyptic number.

22728304478 is a deficient number, since it is larger than the sum of its proper divisors (14463466522).

22728304478 is a wasteful number, since it uses less digits than its factorization.

22728304478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033104762.

The product of its (nonzero) digits is 1204224, while the sum is 47.

The spelling of 22728304478 in words is "twenty-two billion, seven hundred twenty-eight million, three hundred four thousand, four hundred seventy-eight".