18124704 has 144 divisors (see below), whose sum is σ = 57238272. Its totient is φ = 5405184.

The previous prime is 18124699. The next prime is 18124763. The reversal of 18124704 is 40742181.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175917 + ... + 176019.

It is an arithmetic number, because the mean of its divisors is an integer number (397488).

Almost surely, 2^18124704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18124704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28619136).

18124704 is an abundant number, since it is smaller than the sum of its proper divisors (39113568).

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

18124704 is a wasteful number, since it uses less digits than its factorization.

18124704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 18124704 is about 4257.3118279027. The cubic root of 18124704 is about 262.6779636748.

Adding to 18124704 its reverse (40742181), we get a palindrome (58866885).

The spelling of 18124704 in words is "eighteen million, one hundred twenty-four thousand, seven hundred four".