18802134 has 48 divisors (see below), whose sum is σ = 46191600. Its totient is φ = 5479488.

The previous prime is 18802123. The next prime is 18802141. The reversal of 18802134 is 43120881.

It is a junction number, because it is equal to n+sod(n) for n = 18802098 and 18802107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2332 + ... + 6560.

It is an arithmetic number, because the mean of its divisors is an integer number (962325).

Almost surely, 2^18802134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18802134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23095800).

18802134 is an abundant number, since it is smaller than the sum of its proper divisors (27389466).

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

18802134 is a wasteful number, since it uses less digits than its factorization.

18802134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269 (or 4266 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 18802134 is about 4336.1427559526. The cubic root of 18802134 is about 265.9106395144.

The spelling of 18802134 in words is "eighteen million, eight hundred two thousand, one hundred thirty-four".