4559440 has 20 divisors (see below), whose sum is σ = 10600884. Its totient is φ = 1823744.

The previous prime is 4559393. The next prime is 4559441. The reversal of 4559440 is 449554.

It can be written as a sum of positive squares in 2 ways, for example, as 2742336 + 1817104 = 1656^2 + 1348^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×4559440² = 41576986227200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4559441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28417 + ... + 28576.

Almost surely, 2^4559440 is an apocalyptic number.

4559440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4559440 is an abundant number, since it is smaller than the sum of its proper divisors (6041444).

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

4559440 is a wasteful number, since it uses less digits than its factorization.

4559440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57006 (or 57000 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 4559440 is about 2135.2845243667. The cubic root of 4559440 is about 165.8200983240.

The spelling of 4559440 in words is "four million, five hundred fifty-nine thousand, four hundred forty".