18285432 has 32 divisors (see below), whose sum is σ = 49870080. Its totient is φ = 5540960.

The previous prime is 18285431. The next prime is 18285451. The reversal of 18285432 is 23458281.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 18285393 and 18285402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18285431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34368 + ... + 34895.

It is an arithmetic number, because the mean of its divisors is an integer number (1558440).

Almost surely, 2^18285432 is an apocalyptic number.

18285432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18285432 is an abundant number, since it is smaller than the sum of its proper divisors (31584648).

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

18285432 is a wasteful number, since it uses less digits than its factorization.

18285432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69283 (or 69279 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 18285432 is about 4276.1468637080. The cubic root of 18285432 is about 263.4521467085.

It can be divided in two parts, 1828 and 5432, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 18285432 in words is "eighteen million, two hundred eighty-five thousand, four hundred thirty-two".