4459420 has 48 divisors (see below), whose sum is σ = 10922688. Its totient is φ = 1497600.

The previous prime is 4459409. The next prime is 4459451. The reversal of 4459420 is 249544.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7120 + ... + 7720.

It is an arithmetic number, because the mean of its divisors is an integer number (227556).

Almost surely, 2^4459420 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 4459420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5461344).

4459420 is an abundant number, since it is smaller than the sum of its proper divisors (6463268).

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

4459420 is a wasteful number, since it uses less digits than its factorization.

4459420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 4459420 is about 2111.7338847497. The cubic root of 4459420 is about 164.5985957468.

The spelling of 4459420 in words is "four million, four hundred fifty-nine thousand, four hundred twenty".