18874254 has 64 divisors (see below), whose sum is σ = 44997120. Its totient is φ = 5166720.

The previous prime is 18874253. The next prime is 18874313. The reversal of 18874254 is 45247881.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18874253) 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, 135717 + ... + 135855.

It is an arithmetic number, because the mean of its divisors is an integer number (703080).

Almost surely, 2^18874254 is an apocalyptic number.

18874254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18874254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22498560).

18874254 is an abundant number, since it is smaller than the sum of its proper divisors (26122866).

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

18874254 is a wasteful number, since it uses less digits than its factorization.

18874254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265.

The product of its digits is 71680, while the sum is 39.

The square root of 18874254 is about 4344.4509434450. The cubic root of 18874254 is about 266.2501933037.

The spelling of 18874254 in words is "eighteen million, eight hundred seventy-four thousand, two hundred fifty-four".