18069958 has 8 divisors (see below), whose sum is σ = 28039680. Its totient is φ = 8723400.

The previous prime is 18069917. The next prime is 18069983. The reversal of 18069958 is 85996081.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155718 + ... + 155833.

It is an arithmetic number, because the mean of its divisors is an integer number (3504960).

Almost surely, 2^18069958 is an apocalyptic number.

18069958 is a deficient number, since it is larger than the sum of its proper divisors (9969722).

18069958 is a wasteful number, since it uses less digits than its factorization.

18069958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311582.

The product of its (nonzero) digits is 155520, while the sum is 46.

The square root of 18069958 is about 4250.8773212126. The cubic root of 18069958 is about 262.4132224121.

The spelling of 18069958 in words is "eighteen million, sixty-nine thousand, nine hundred fifty-eight".