18454164 has 12 divisors (see below), whose sum is σ = 43059744. Its totient is φ = 6151384.

The previous prime is 18454159. The next prime is 18454169. The reversal of 18454164 is 46145481.

It is an interprime number because it is at equal distance from previous prime (18454159) and next prime (18454169).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18454169) 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 3 ways as a sum of consecutive naturals, for example, 768912 + ... + 768935.

It is an arithmetic number, because the mean of its divisors is an integer number (3588312).

Almost surely, 2^18454164 is an apocalyptic number.

It is an amenable number.

18454164 is an abundant number, since it is smaller than the sum of its proper divisors (24605580).

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

18454164 is a wasteful number, since it uses less digits than its factorization.

18454164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1537854 (or 1537852 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 18454164 is about 4295.8310022625. The cubic root of 18454164 is about 264.2600170082.

The spelling of 18454164 in words is "eighteen million, four hundred fifty-four thousand, one hundred sixty-four".