18828798 has 16 divisors (see below), whose sum is σ = 37796880. Its totient is φ = 6253056.

The previous prime is 18828787. The next prime is 18828827. The reversal of 18828798 is 89782881.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18828798.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4003 + ... + 7326.

It is an arithmetic number, because the mean of its divisors is an integer number (2362305).

Almost surely, 2^18828798 is an apocalyptic number.

18828798 is an abundant number, since it is smaller than the sum of its proper divisors (18968082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18828798 is a wasteful number, since it uses less digits than its factorization.

18828798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11611.

The product of its digits is 516096, while the sum is 51.

The square root of 18828798 is about 4339.2162886862. The cubic root of 18828798 is about 266.0362793715.

The spelling of 18828798 in words is "eighteen million, eight hundred twenty-eight thousand, seven hundred ninety-eight".