18874450 has 24 divisors (see below), whose sum is σ = 40122432. Its totient is φ = 6471120.

The previous prime is 18874439. The next prime is 18874459. The reversal of 18874450 is 5447881.

It is not an unprimeable number, because it can be changed into a prime (18874459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26614 + ... + 27313.

It is an arithmetic number, because the mean of its divisors is an integer number (1671768).

Almost surely, 2^18874450 is an apocalyptic number.

18874450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18874450 is an abundant number, since it is smaller than the sum of its proper divisors (21247982).

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

18874450 is a wasteful number, since it uses less digits than its factorization.

18874450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53946 (or 53941 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 18874450 is about 4344.4735008974. The cubic root of 18874450 is about 266.2511149270.

The spelling of 18874450 in words is "eighteen million, eight hundred seventy-four thousand, four hundred fifty".