18873162 has 160 divisors (see below), whose sum is σ = 56453760. Its totient is φ = 4561920.

The previous prime is 18873131. The next prime is 18873167. The reversal of 18873162 is 26137881.

It is not an unprimeable number, because it can be changed into a prime (18873167) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 212014 + ... + 212102.

It is an arithmetic number, because the mean of its divisors is an integer number (352836).

Almost surely, 2^18873162 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18873162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28226880).

18873162 is an abundant number, since it is smaller than the sum of its proper divisors (37580598).

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

18873162 is a wasteful number, since it uses less digits than its factorization.

18873162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 129 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 18873162 is about 4344.3252640658. The cubic root of 18873162 is about 266.2450584284.

The spelling of 18873162 in words is "eighteen million, eight hundred seventy-three thousand, one hundred sixty-two".