18433042 has 4 divisors (see below), whose sum is σ = 27649566. Its totient is φ = 9216520.

The previous prime is 18433039. The next prime is 18433061. The reversal of 18433042 is 24033481.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18309841 + 123201 = 4279^2 + 351^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18432998 and 18433016.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4608259 + ... + 4608262.

Almost surely, 2^18433042 is an apocalyptic number.

18433042 is a deficient number, since it is larger than the sum of its proper divisors (9216524).

18433042 is an equidigital number, since it uses as much as digits as its factorization.

18433042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9216523.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 18433042 is about 4293.3718683571. The cubic root of 18433042 is about 264.1591575495.

The spelling of 18433042 in words is "eighteen million, four hundred thirty-three thousand, forty-two".