28422718 has 8 divisors (see below), whose sum is σ = 42657048. Its totient is φ = 14203704.

The previous prime is 28422707. The next prime is 28422721. The reversal of 28422718 is 81722482.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4080 + ... + 8572.

It is an arithmetic number, because the mean of its divisors is an integer number (5332131).

Almost surely, 2^28422718 is an apocalyptic number.

28422718 is a deficient number, since it is larger than the sum of its proper divisors (14234330).

28422718 is a wasteful number, since it uses less digits than its factorization.

28422718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7658.

The product of its digits is 14336, while the sum is 34.

The square root of 28422718 is about 5331.2960900704. The cubic root of 28422718 is about 305.1793910185.

The spelling of 28422718 in words is "twenty-eight million, four hundred twenty-two thousand, seven hundred eighteen".