18453412 has 12 divisors (see below), whose sum is σ = 32327680. Its totient is φ = 9216936.

The previous prime is 18453361. The next prime is 18453419. The reversal of 18453412 is 21435481.

It is a super-3 number, since 3×18453412³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (18453419) 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, 3313 + ... + 6919.

Almost surely, 2^18453412 is an apocalyptic number.

It is an amenable number.

18453412 is a deficient number, since it is larger than the sum of its proper divisors (13874268).

18453412 is a wasteful number, since it uses less digits than its factorization.

18453412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890 (or 4888 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 18453412 is about 4295.7434746502. The cubic root of 18453412 is about 264.2564274619.

Adding to 18453412 its reverse (21435481), we get a palindrome (39888893).

The spelling of 18453412 in words is "eighteen million, four hundred fifty-three thousand, four hundred twelve".