18134634 has 16 divisors (see below), whose sum is σ = 41450688. Its totient is φ = 5181312.

The previous prime is 18134617. The next prime is 18134663. The reversal of 18134634 is 43643181.

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, 215847 + ... + 215930.

It is an arithmetic number, because the mean of its divisors is an integer number (2590668).

Almost surely, 2^18134634 is an apocalyptic number.

18134634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18134634 is an abundant number, since it is smaller than the sum of its proper divisors (23316054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18134634 is a wasteful number, since it uses less digits than its factorization.

18134634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431789.

The product of its digits is 6912, while the sum is 30.

The square root of 18134634 is about 4258.4778970895. The cubic root of 18134634 is about 262.7259261311.

The spelling of 18134634 in words is "eighteen million, one hundred thirty-four thousand, six hundred thirty-four".