4428540 has 96 divisors (see below), whose sum is σ = 14112000. Its totient is φ = 1152576.

The previous prime is 4428511. The next prime is 4428553. The reversal of 4428540 is 458244.

It is a super-2 number, since 2×4428540² = 39223933063200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31791 + ... + 31929.

It is an arithmetic number, because the mean of its divisors is an integer number (147000).

Almost surely, 2^4428540 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 4428540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7056000).

4428540 is an abundant number, since it is smaller than the sum of its proper divisors (9683460).

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

4428540 is a wasteful number, since it uses less digits than its factorization.

4428540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 4428540 is about 2104.4096559368. The cubic root of 4428540 is about 164.2177852210.

The spelling of 4428540 in words is "four million, four hundred twenty-eight thousand, five hundred forty".