18828468 has 36 divisors (see below), whose sum is σ = 50100960. Its totient is φ = 5945616.

The previous prime is 18828463. The next prime is 18828479. The reversal of 18828468 is 86482881.

It is a happy number.

18828468 is a `hidden beast` number, since 188 + 2 + 8 + 468 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×18828468² = 709022414454048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18828461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13080 + ... + 14447.

Almost surely, 2^18828468 is an apocalyptic number.

18828468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18828468 is an abundant number, since it is smaller than the sum of its proper divisors (31272492).

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

18828468 is a wasteful number, since it uses less digits than its factorization.

18828468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27556 (or 27551 counting only the distinct ones).

The product of its digits is 196608, while the sum is 45.

The square root of 18828468 is about 4339.1782632199. The cubic root of 18828468 is about 266.0347251479.

The spelling of 18828468 in words is "eighteen million, eight hundred twenty-eight thousand, four hundred sixty-eight".