18230534 has 8 divisors (see below), whose sum is σ = 31252368. Its totient is φ = 7813080.

The previous prime is 18230507. The next prime is 18230543. The reversal of 18230534 is 43503281.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651077 + ... + 651104.

It is an arithmetic number, because the mean of its divisors is an integer number (3906546).

Almost surely, 2^18230534 is an apocalyptic number.

18230534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18230534 is a deficient number, since it is larger than the sum of its proper divisors (13021834).

18230534 is a wasteful number, since it uses less digits than its factorization.

18230534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302190.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 18230534 is about 4269.7229418312. The cubic root of 18230534 is about 263.1882299809.

The spelling of 18230534 in words is "eighteen million, two hundred thirty thousand, five hundred thirty-four".