3521232 has 200 divisors, whose sum is σ = 12603360. Its totient is φ = 933120.

The previous prime is 3521201. The next prime is 3521237. The reversal of 3521232 is 2321253.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521237) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 185319 + ... + 185337.

Almost surely, 2^3521232 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 3521232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6301680).

3521232 is an abundant number, since it is smaller than the sum of its proper divisors (9082128).

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

3521232 is a wasteful number, since it uses less digits than its factorization.

3521232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 48 counting only the distinct ones).

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

The square root of 3521232 is about 1876.4946043088. The cubic root of 3521232 is about 152.1358434718.

Adding to 3521232 its reverse (2321253), we get a palindrome (5842485).

The spelling of 3521232 in words is "three million, five hundred twenty-one thousand, two hundred thirty-two".