18024425 has 12 divisors (see below), whose sum is σ = 22468800. Its totient is φ = 14343120.

The previous prime is 18024401. The next prime is 18024427. The reversal of 18024425 is 52442081.

It is a happy number.

It is not a de Polignac number, because 18024425 - 2⁸ = 18024169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18024394 and 18024403.

It is not an unprimeable number, because it can be changed into a prime (18024427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3164 + ... + 6786.

It is an arithmetic number, because the mean of its divisors is an integer number (1872400).

Almost surely, 2^18024425 is an apocalyptic number.

It is an amenable number.

18024425 is a deficient number, since it is larger than the sum of its proper divisors (4444375).

18024425 is a wasteful number, since it uses less digits than its factorization.

18024425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832 (or 3827 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 18024425 is about 4245.5182251405. The cubic root of 18024425 is about 262.1926258597.

The spelling of 18024425 in words is "eighteen million, twenty-four thousand, four hundred twenty-five".