18424245 has 32 divisors (see below), whose sum is σ = 34387200. Its totient is φ = 8420160.

The previous prime is 18424229. The next prime is 18424247. The reversal of 18424245 is 54242481.

It is not a de Polignac number, because 18424245 - 2⁴ = 18424229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18424247) 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 31 ways as a sum of consecutive naturals, for example, 3355 + ... + 6935.

It is an arithmetic number, because the mean of its divisors is an integer number (1074600).

Almost surely, 2^18424245 is an apocalyptic number.

18424245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18424245 is a deficient number, since it is larger than the sum of its proper divisors (15962955).

18424245 is an equidigital number, since it uses as much as digits as its factorization.

18424245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610 (or 3596 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 18424245 is about 4292.3472599500. The cubic root of 18424245 is about 264.1171283522.

The spelling of 18424245 in words is "eighteen million, four hundred twenty-four thousand, two hundred forty-five".