18434534 has 8 divisors (see below), whose sum is σ = 27812160. Its totient is φ = 9163816.

The previous prime is 18434531. The next prime is 18434551. The reversal of 18434534 is 43543481.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18434534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18434531) 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, 26294 + ... + 26985.

It is an arithmetic number, because the mean of its divisors is an integer number (3476520).

Almost surely, 2^18434534 is an apocalyptic number.

18434534 is a deficient number, since it is larger than the sum of its proper divisors (9377626).

18434534 is a wasteful number, since it uses less digits than its factorization.

18434534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53454.

The product of its digits is 23040, while the sum is 32.

The square root of 18434534 is about 4293.5456210456. The cubic root of 18434534 is about 264.1662845126.

The spelling of 18434534 in words is "eighteen million, four hundred thirty-four thousand, five hundred thirty-four".