18963828 has 72 divisors (see below), whose sum is σ = 53289600. Its totient is φ = 5829408.

The previous prime is 18963827. The next prime is 18963851. The reversal of 18963828 is 82836981.

18963828 is a `hidden beast` number, since 1 + 8 + 9 + 638 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18963827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17733 + ... + 18771.

Almost surely, 2^18963828 is an apocalyptic number.

18963828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18963828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26644800).

18963828 is an abundant number, since it is smaller than the sum of its proper divisors (34325772).

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

18963828 is a wasteful number, since it uses less digits than its factorization.

18963828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 1057 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 18963828 is about 4354.7477538889. The cubic root of 18963828 is about 266.6707214661.

It can be divided in two parts, 18963 and 828, that added together give a palindrome (19791).

The spelling of 18963828 in words is "eighteen million, nine hundred sixty-three thousand, eight hundred twenty-eight".