18828799 has 16 divisors (see below), whose sum is σ = 21337344. Its totient is φ = 16465600.

The previous prime is 18828787. The next prime is 18828827. The reversal of 18828799 is 99782881.

It is not a de Polignac number, because 18828799 - 2¹⁷ = 18697727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18828599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37182 + ... + 37684.

It is an arithmetic number, because the mean of its divisors is an integer number (1333584).

Almost surely, 2^18828799 is an apocalyptic number.

18828799 is a deficient number, since it is larger than the sum of its proper divisors (2508545).

18828799 is a wasteful number, since it uses less digits than its factorization.

18828799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638.

The product of its digits is 580608, while the sum is 52.

The square root of 18828799 is about 4339.2164039144. The cubic root of 18828799 is about 266.0362840812.

The spelling of 18828799 in words is "eighteen million, eight hundred twenty-eight thousand, seven hundred ninety-nine".