28344718 has 8 divisors (see below), whose sum is σ = 43319448. Its totient is φ = 13904904.

The previous prime is 28344709. The next prime is 28344731. The reversal of 28344718 is 81744382.

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, 133596 + ... + 133807.

It is an arithmetic number, because the mean of its divisors is an integer number (5414931).

Almost surely, 2^28344718 is an apocalyptic number.

28344718 is a deficient number, since it is larger than the sum of its proper divisors (14974730).

28344718 is a wasteful number, since it uses less digits than its factorization.

28344718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267458.

The product of its digits is 43008, while the sum is 37.

The square root of 28344718 is about 5323.9757700425. The cubic root of 28344718 is about 304.8999689880.

The spelling of 28344718 in words is "twenty-eight million, three hundred forty-four thousand, seven hundred eighteen".