18768484 has 12 divisors (see below), whose sum is σ = 37537024. Its totient is φ = 8043624.

The previous prime is 18768479. The next prime is 18768499. The reversal of 18768484 is 48486781.

It is a happy number.

18768484 is an admirable number.

It is a super-3 number, since 3×18768484³ (a number of 23 digits) contains 333 as substring.

18768484 is a modest number, since divided by 8484 gives 1876 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335124 + ... + 335179.

Almost surely, 2^18768484 is an apocalyptic number.

18768484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18768484 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.

18768484 is a wasteful number, since it uses less digits than its factorization.

18768484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670314 (or 670312 counting only the distinct ones).

The product of its digits is 344064, while the sum is 46.

The square root of 18768484 is about 4332.2608416392. The cubic root of 18768484 is about 265.7519122068.

The spelling of 18768484 in words is "eighteen million, seven hundred sixty-eight thousand, four hundred eighty-four".