18418848 has 48 divisors (see below), whose sum is σ = 55258560. Its totient is φ = 5262336.

The previous prime is 18418831. The next prime is 18418861. The reversal of 18418848 is 84881481.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13033 + ... + 14376.

It is an arithmetic number, because the mean of its divisors is an integer number (1151220).

Almost surely, 2^18418848 is an apocalyptic number.

It is an amenable number.

18418848 is an abundant number, since it is smaller than the sum of its proper divisors (36839712).

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

18418848 is a wasteful number, since it uses less digits than its factorization.

18418848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27429 (or 27421 counting only the distinct ones).

The product of its digits is 65536, while the sum is 42.

The square root of 18418848 is about 4291.7185369034. The cubic root of 18418848 is about 264.0913366242.

The spelling of 18418848 in words is "eighteen million, four hundred eighteen thousand, eight hundred forty-eight".