18434065 has 8 divisors (see below), whose sum is σ = 23822568. Its totient is φ = 13612800.

The previous prime is 18434027. The next prime is 18434081. The reversal of 18434065 is 56043481.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2047761 + 16386304 = 1431^2 + 4048^2 .

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

It is not a de Polignac number, because 18434065 - 2¹¹ = 18432017 is a prime.

It is a Duffinian 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, 141736 + ... + 141865.

It is an arithmetic number, because the mean of its divisors is an integer number (2977821).

Almost surely, 2^18434065 is an apocalyptic number.

It is an amenable number.

18434065 is a deficient number, since it is larger than the sum of its proper divisors (5388503).

18434065 is a wasteful number, since it uses less digits than its factorization.

18434065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283619.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 18434065 is about 4293.4910038336. The cubic root of 18434065 is about 264.1640442419.

The spelling of 18434065 in words is "eighteen million, four hundred thirty-four thousand, sixty-five".