28342318 has 8 divisors (see below), whose sum is σ = 42537240. Its totient is φ = 14163240.

The previous prime is 28342313. The next prime is 28342343. The reversal of 28342318 is 81324382.

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

It is a super-2 number, since 2×28342318² = 1606573979226248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28342318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28342313) 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, 2868 + ... + 8056.

It is an arithmetic number, because the mean of its divisors is an integer number (5317155).

Almost surely, 2^28342318 is an apocalyptic number.

28342318 is a deficient number, since it is larger than the sum of its proper divisors (14194922).

28342318 is a wasteful number, since it uses less digits than its factorization.

28342318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7922.

The product of its digits is 9216, while the sum is 31.

The square root of 28342318 is about 5323.7503698051. The cubic root of 28342318 is about 304.8913632626.

The spelling of 28342318 in words is "twenty-eight million, three hundred forty-two thousand, three hundred eighteen".