12023532 has 48 divisors (see below), whose sum is σ = 31409280. Its totient is φ = 3977424.

The previous prime is 12023513. The next prime is 12023569. The reversal of 12023532 is 23532021.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 17263 + ... + 17945.

It is an arithmetic number, because the mean of its divisors is an integer number (654360).

Almost surely, 2^12023532 is an apocalyptic number.

12023532 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 12023532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15704640).

12023532 is an abundant number, since it is smaller than the sum of its proper divisors (19385748).

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

12023532 is a wasteful number, since it uses less digits than its factorization.

12023532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 12023532 is about 3467.4965032426. The cubic root of 12023532 is about 229.0924031030.

Adding to 12023532 its reverse (23532021), we get a palindrome (35555553).

The spelling of 12023532 in words is "twelve million, twenty-three thousand, five hundred thirty-two".