18414664 has 32 divisors (see below), whose sum is σ = 35640000. Its totient is φ = 8914752.

The previous prime is 18414661. The next prime is 18414673. The reversal of 18414664 is 46641481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18414661) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 68322 + ... + 68590.

It is an arithmetic number, because the mean of its divisors is an integer number (1113750).

Almost surely, 2^18414664 is an apocalyptic number.

It is an amenable number.

18414664 is a deficient number, since it is larger than the sum of its proper divisors (17225336).

18414664 is a wasteful number, since it uses less digits than its factorization.

18414664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 513 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 18414664 is about 4291.2310587989. The cubic root of 18414664 is about 264.0713382357.

The spelling of 18414664 in words is "eighteen million, four hundred fourteen thousand, six hundred sixty-four".