18454004 has 12 divisors (see below), whose sum is σ = 33698784. Its totient is φ = 8825784.

The previous prime is 18454003. The next prime is 18454031. The reversal of 18454004 is 40045481.

It is a super-3 number, since 3×18454004³ (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 (18454003) 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 3 ways as a sum of consecutive naturals, for example, 100202 + ... + 100385.

It is an arithmetic number, because the mean of its divisors is an integer number (2808232).

Almost surely, 2^18454004 is an apocalyptic number.

It is an amenable number.

18454004 is a deficient number, since it is larger than the sum of its proper divisors (15244780).

18454004 is a wasteful number, since it uses less digits than its factorization.

18454004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200614 (or 200612 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 18454004 is about 4295.8123795157. The cubic root of 18454004 is about 264.2592532831.

Adding to 18454004 its reverse (40045481), we get a palindrome (58499485).

The spelling of 18454004 in words is "eighteen million, four hundred fifty-four thousand, four".