18148764 has 24 divisors (see below), whose sum is σ = 43714048. Its totient is φ = 5854320.

The previous prime is 18148747. The next prime is 18148769. The reversal of 18148764 is 46784181.

It is a super-3 number, since 3×18148764³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18148769) 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 7 ways as a sum of consecutive naturals, for example, 24022 + ... + 24765.

Almost surely, 2^18148764 is an apocalyptic number.

It is an amenable number.

18148764 is an abundant number, since it is smaller than the sum of its proper divisors (25565284).

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

18148764 is a wasteful number, since it uses less digits than its factorization.

18148764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48825 (or 48823 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 18148764 is about 4260.1366175277. The cubic root of 18148764 is about 262.7941446492.

The spelling of 18148764 in words is "eighteen million, one hundred forty-eight thousand, seven hundred sixty-four".