4490320 has 60 divisors (see below), whose sum is σ = 10991484. Its totient is φ = 1704960.

The previous prime is 4490309. The next prime is 4490347. The reversal of 4490320 is 230944.

It can be written as a sum of positive squares in 6 ways, for example, as 46656 + 4443664 = 216^2 + 2108^2 .

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4490291 and 4490300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109500 + ... + 109540.

Almost surely, 2^4490320 is an apocalyptic number.

4490320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4490320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5495742).

4490320 is an abundant number, since it is smaller than the sum of its proper divisors (6501164).

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

4490320 is a wasteful number, since it uses less digits than its factorization.

4490320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 4490320 is about 2119.0375173649. The cubic root of 4490320 is about 164.9778972536.

The spelling of 4490320 in words is "four million, four hundred ninety thousand, three hundred twenty".