28018794 has 8 divisors (see below), whose sum is σ = 56037600. Its totient is φ = 9339596.

The previous prime is 28018789. The next prime is 28018799. The reversal of 28018794 is 49781082.

It is an interprime number because it is at equal distance from previous prime (28018789) and next prime (28018799).

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

28018794 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28018799) 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, 2334894 + ... + 2334905.

It is an arithmetic number, because the mean of its divisors is an integer number (7004700).

Almost surely, 2^28018794 is an apocalyptic number.

28018794 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.

28018794 is a wasteful number, since it uses less digits than its factorization.

28018794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669804.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 28018794 is about 5293.2781903089. The cubic root of 28018794 is about 303.7268220557.

The spelling of 28018794 in words is "twenty-eight million, eighteen thousand, seven hundred ninety-four".