18074250 has 96 divisors (see below), whose sum is σ = 50740560. Its totient is φ = 4636800.

The previous prime is 18074249. The next prime is 18074261. The reversal of 18074250 is 5247081.

It can be written as a sum of positive squares in 8 ways, for example, as 3249 + 18071001 = 57^2 + 4251^2 .

It is a Curzon number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 65112 + ... + 65388.

Almost surely, 2^18074250 is an apocalyptic number.

18074250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18074250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25370280).

18074250 is an abundant number, since it is smaller than the sum of its proper divisors (32666310).

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

18074250 is a wasteful number, since it uses less digits than its factorization.

18074250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 18074250 is about 4251.3821282025. The cubic root of 18074250 is about 262.4339970110.

The spelling of 18074250 in words is "eighteen million, seventy-four thousand, two hundred fifty".