17982442 has 8 divisors (see below), whose sum is σ = 27252036. Its totient is φ = 8898432.

The previous prime is 17982427. The next prime is 17982443. The reversal of 17982442 is 24428971.

It can be written as a sum of positive squares in 2 ways, for example, as 16818201 + 1164241 = 4101^2 + 1079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (17982443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46153 + ... + 46540.

Almost surely, 2^17982442 is an apocalyptic number.

17982442 is a deficient number, since it is larger than the sum of its proper divisors (9269594).

17982442 is an equidigital number, since it uses as much as digits as its factorization.

17982442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92792.

The product of its digits is 32256, while the sum is 37.

The square root of 17982442 is about 4240.5709521243. The cubic root of 17982442 is about 261.9888987779.

It can be divided in two parts, 179 and 82442, that added together give a triangular number (82621 = T₄₀₆).

The spelling of 17982442 in words is "seventeen million, nine hundred eighty-two thousand, four hundred forty-two".