4428324 has 48 divisors (see below), whose sum is σ = 11605440. Its totient is φ = 1460160.

The previous prime is 4428323. The next prime is 4428331. The reversal of 4428324 is 4238244.

It is a happy number.

It is a super-2 number, since 2×4428324² = 39220106897952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4428323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13992 + ... + 14304.

It is an arithmetic number, because the mean of its divisors is an integer number (241780).

Almost surely, 2^4428324 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 4428324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5802720).

4428324 is an abundant number, since it is smaller than the sum of its proper divisors (7177116).

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

4428324 is a wasteful number, since it uses less digits than its factorization.

4428324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 449 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 4428324 is about 2104.3583345048. The cubic root of 4428324 is about 164.2151152953.

The spelling of 4428324 in words is "four million, four hundred twenty-eight thousand, three hundred twenty-four".