18226734 has 8 divisors (see below), whose sum is σ = 36453480. Its totient is φ = 6075576.

The previous prime is 18226699. The next prime is 18226759. The reversal of 18226734 is 43762281.

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

18226734 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 18226695 and 18226704.

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, 1518889 + ... + 1518900.

It is an arithmetic number, because the mean of its divisors is an integer number (4556685).

Almost surely, 2^18226734 is an apocalyptic number.

18226734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18226734 is a wasteful number, since it uses less digits than its factorization.

18226734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037794.

The product of its digits is 16128, while the sum is 33.

The square root of 18226734 is about 4269.2779248955. The cubic root of 18226734 is about 263.1699422597.

The spelling of 18226734 in words is "eighteen million, two hundred twenty-six thousand, seven hundred thirty-four".