4221532 has 12 divisors (see below), whose sum is σ = 8443120. Its totient is φ = 1809216.

The previous prime is 4221521. The next prime is 4221533. The reversal of 4221532 is 2351224.

4221532 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75357 + ... + 75412.

Almost surely, 2^4221532 is an apocalyptic number.

It is an amenable number.

4221532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4221532 is a wasteful number, since it uses less digits than its factorization.

4221532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150780 (or 150778 counting only the distinct ones).

The product of its digits is 480, while the sum is 19.

The square root of 4221532 is about 2054.6367075471. The cubic root of 4221532 is about 161.6181117987.

Adding to 4221532 its reverse (2351224), we get a palindrome (6572756).

It can be divided in two parts, 4221 and 532, that added together give a triangular number (4753 = T₉₇).

The spelling of 4221532 in words is "four million, two hundred twenty-one thousand, five hundred thirty-two".