18069419 has 4 divisors (see below), whose sum is σ = 19132344. Its totient is φ = 17006496.

The previous prime is 18069371. The next prime is 18069473. The reversal of 18069419 is 91496081.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18069419 - 2¹⁶ = 18003883 is a prime.

It is a super-2 number, since 2×18069419² = 653007805995122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18069119) 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, 531437 + ... + 531470.

It is an arithmetic number, because the mean of its divisors is an integer number (4783086).

Almost surely, 2^18069419 is an apocalyptic number.

18069419 is a deficient number, since it is larger than the sum of its proper divisors (1062925).

18069419 is a wasteful number, since it uses less digits than its factorization.

18069419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062924.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 18069419 is about 4250.8139220625. The cubic root of 18069419 is about 262.4106132540.

The spelling of 18069419 in words is "eighteen million, sixty-nine thousand, four hundred nineteen".