18042468 has 24 divisors (see below), whose sum is σ = 42185472. Its totient is φ = 6001824.

The previous prime is 18042463. The next prime is 18042469. The reversal of 18042468 is 86424081.

It is not an unprimeable number, because it can be changed into a prime (18042463) 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 7 ways as a sum of consecutive naturals, for example, 6046 + ... + 8522.

It is an arithmetic number, because the mean of its divisors is an integer number (1757728).

Almost surely, 2^18042468 is an apocalyptic number.

It is an amenable number.

18042468 is an abundant number, since it is smaller than the sum of its proper divisors (24143004).

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

18042468 is a wasteful number, since it uses less digits than its factorization.

18042468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3091 (or 3089 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 18042468 is about 4247.6426403359. The cubic root of 18042468 is about 262.2800842925.

The spelling of 18042468 in words is "eighteen million, forty-two thousand, four hundred sixty-eight".