18054404 has 12 divisors (see below), whose sum is σ = 31627344. Its totient is φ = 9018024.

The previous prime is 18054403. The next prime is 18054437. The reversal of 18054404 is 40445081.

It is not an unprimeable number, because it can be changed into a prime (18054401) 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, 4127 + ... + 7289.

It is an arithmetic number, because the mean of its divisors is an integer number (2635612).

Almost surely, 2^18054404 is an apocalyptic number.

It is an amenable number.

18054404 is a deficient number, since it is larger than the sum of its proper divisors (13572940).

18054404 is a wasteful number, since it uses less digits than its factorization.

18054404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594 (or 4592 counting only the distinct ones).

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

The square root of 18054404 is about 4249.0474226584. The cubic root of 18054404 is about 262.3379086987.

Adding to 18054404 its reverse (40445081), we get a palindrome (58499485).

The spelling of 18054404 in words is "eighteen million, fifty-four thousand, four hundred four".