18895842 has 80 divisors (see below), whose sum is σ = 50994240. Its totient is φ = 5108832.

The previous prime is 18895837. The next prime is 18895847. The reversal of 18895842 is 24859881.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18895837) and next prime (18895847).

It is not an unprimeable number, because it can be changed into a prime (18895847) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21108 + ... + 21984.

It is an arithmetic number, because the mean of its divisors is an integer number (637428).

Almost surely, 2^18895842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18895842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25497120).

18895842 is an abundant number, since it is smaller than the sum of its proper divisors (32098398).

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

18895842 is a wasteful number, since it uses less digits than its factorization.

18895842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 908 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 18895842 is about 4346.9347821195. The cubic root of 18895842 is about 266.3516652021.

The spelling of 18895842 in words is "eighteen million, eight hundred ninety-five thousand, eight hundred forty-two".