18250432 has 28 divisors (see below), whose sum is σ = 36429696. Its totient is φ = 9071360.

The previous prime is 18250423. The next prime is 18250433. The reversal of 18250432 is 23405281.

It is a junction number, because it is equal to n+sod(n) for n = 18250397 and 18250406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18250433) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11478 + ... + 12970.

Almost surely, 2^18250432 is an apocalyptic number.

It is an amenable number.

18250432 is a deficient number, since it is larger than the sum of its proper divisors (18179264).

18250432 is a wasteful number, since it uses less digits than its factorization.

18250432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696 (or 1686 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 18250432 is about 4272.0524341351. The cubic root of 18250432 is about 263.2839487943.

The spelling of 18250432 in words is "eighteen million, two hundred fifty thousand, four hundred thirty-two".