18869832 has 48 divisors (see below), whose sum is σ = 51505740. Its totient is φ = 6240768.

The previous prime is 18869797. The next prime is 18869833. The reversal of 18869832 is 23896881.

It can be written as a sum of positive squares in 2 ways, for example, as 17690436 + 1179396 = 4206^2 + 1086^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (18869833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8908 + ... + 10820.

Almost surely, 2^18869832 is an apocalyptic number.

18869832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18869832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25752870).

18869832 is an abundant number, since it is smaller than the sum of its proper divisors (32635908).

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

18869832 is a wasteful number, since it uses less digits than its factorization.

18869832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062 (or 2055 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 18869832 is about 4343.9419885629. The cubic root of 18869832 is about 266.2293986573.

It can be divided in two parts, 18869 and 832, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 18869832 in words is "eighteen million, eight hundred sixty-nine thousand, eight hundred thirty-two".