4573440 has 108 divisors (see below), whose sum is σ = 15863484. Its totient is φ = 1216512.

The previous prime is 4573421. The next prime is 4573441. The reversal of 4573440 is 443754.

It can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 2214144 = 1536^2 + 1488^2 .

It is not an unprimeable number, because it can be changed into a prime (4573441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11322 + ... + 11718.

Almost surely, 2^4573440 is an apocalyptic number.

4573440 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 4573440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7931742).

4573440 is an abundant number, since it is smaller than the sum of its proper divisors (11290044).

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

4573440 is a wasteful number, since it uses less digits than its factorization.

4573440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 4573440 is about 2138.5602633548. The cubic root of 4573440 is about 165.9896446823.

The spelling of 4573440 in words is "four million, five hundred seventy-three thousand, four hundred forty".