18136032 has 96 divisors (see below), whose sum is σ = 51246720. Its totient is φ = 5598720.

The previous prime is 18136007. The next prime is 18136043. The reversal of 18136032 is 23063181.

It is a tau number, because it is divible by the number of its divisors (96).

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 = 18135993 and 18136011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111183 + ... + 111345.

It is an arithmetic number, because the mean of its divisors is an integer number (533820).

Almost surely, 2^18136032 is an apocalyptic number.

18136032 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 18136032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25623360).

18136032 is an abundant number, since it is smaller than the sum of its proper divisors (33110688).

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

18136032 is a wasteful number, since it uses less digits than its factorization.

18136032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 18136032 is about 4258.6420370818. The cubic root of 18136032 is about 262.7326771433.

The spelling of 18136032 in words is "eighteen million, one hundred thirty-six thousand, thirty-two".