32401232 has 40 divisors (see below), whose sum is σ = 67361760. Its totient is φ = 15050880.

The previous prime is 32401217. The next prime is 32401241. The reversal of 32401232 is 23210423.

It is a self number, because there is not a number n which added to its sum of digits gives 32401232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15107 + ... + 17117.

It is an arithmetic number, because the mean of its divisors is an integer number (1684044).

Almost surely, 2^32401232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32401232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33680880).

32401232 is an abundant number, since it is smaller than the sum of its proper divisors (34960528).

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

32401232 is a wasteful number, since it uses less digits than its factorization.

32401232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091 (or 2085 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 32401232 is about 5692.2080074432. The cubic root of 32401232 is about 318.8016114300.

Adding to 32401232 its reverse (23210423), we get a palindrome (55611655).

The spelling of 32401232 in words is "thirty-two million, four hundred one thousand, two hundred thirty-two".