18374748 has 96 divisors (see below), whose sum is σ = 53491200. Its totient is φ = 4790016.

The previous prime is 18374747. The next prime is 18374771. The reversal of 18374748 is 84747381.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18374747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46086 + ... + 46482.

It is an arithmetic number, because the mean of its divisors is an integer number (557200).

Almost surely, 2^18374748 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 18374748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26745600).

18374748 is an abundant number, since it is smaller than the sum of its proper divisors (35116452).

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

18374748 is a wasteful number, since it uses less digits than its factorization.

18374748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 457 counting only the distinct ones).

The product of its digits is 150528, while the sum is 42.

The square root of 18374748 is about 4286.5776558929. The cubic root of 18374748 is about 263.8803980738.

The spelling of 18374748 in words is "eighteen million, three hundred seventy-four thousand, seven hundred forty-eight".