18424038 has 16 divisors (see below), whose sum is σ = 37705536. Its totient is φ = 5998440.

The previous prime is 18424027. The next prime is 18424067. The reversal of 18424038 is 83042481.

It is a junction number, because it is equal to n+sod(n) for n = 18423996 and 18424014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35448 + ... + 35963.

It is an arithmetic number, because the mean of its divisors is an integer number (2356596).

Almost surely, 2^18424038 is an apocalyptic number.

18424038 is an abundant number, since it is smaller than the sum of its proper divisors (19281498).

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

18424038 is a wasteful number, since it uses less digits than its factorization.

18424038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71459.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 18424038 is about 4292.3231472013. The cubic root of 18424038 is about 264.1161392126.

The spelling of 18424038 in words is "eighteen million, four hundred twenty-four thousand, thirty-eight".