18802032 has 40 divisors (see below), whose sum is σ = 49056384. Its totient is φ = 6204864.

The previous prime is 18802019. The next prime is 18802033. The reversal of 18802032 is 23020881.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 18801993 and 18802011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18802033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3043 + ... + 6845.

Almost surely, 2^18802032 is an apocalyptic number.

18802032 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 18802032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24528192).

18802032 is an abundant number, since it is smaller than the sum of its proper divisors (30254352).

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

18802032 is a wasteful number, since it uses less digits than its factorization.

18802032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3917 (or 3911 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 18802032 is about 4336.1309943312. The cubic root of 18802032 is about 265.9101586659.

The spelling of 18802032 in words is "eighteen million, eight hundred two thousand, thirty-two".