4221552 has 40 divisors (see below), whose sum is σ = 11205136. Its totient is φ = 1368576.

The previous prime is 4221551. The next prime is 4221563. The reversal of 4221552 is 2551224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 588 + ... + 2964.

Almost surely, 2^4221552 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 4221552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5602568).

4221552 is an abundant number, since it is smaller than the sum of its proper divisors (6983584).

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

4221552 is a wasteful number, since it uses less digits than its factorization.

4221552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425 (or 2419 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 4221552 is about 2054.6415745818. The cubic root of 4221552 is about 161.6183670265.

Adding to 4221552 its reverse (2551224), we get a palindrome (6772776).

The spelling of 4221552 in words is "four million, two hundred twenty-one thousand, five hundred fifty-two".