4564240 has 40 divisors (see below), whose sum is σ = 10802880. Its totient is φ = 1792896.

The previous prime is 4564207. The next prime is 4564247. The reversal of 4564240 is 424654.

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4564247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4237 + ... + 5203.

It is an arithmetic number, because the mean of its divisors is an integer number (270072).

Almost surely, 2^4564240 is an apocalyptic number.

4564240 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 4564240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5401440).

4564240 is an abundant number, since it is smaller than the sum of its proper divisors (6238640).

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

4564240 is a wasteful number, since it uses less digits than its factorization.

4564240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4564240 is about 2136.4082006957. The cubic root of 4564240 is about 165.8782675527.

Adding to 4564240 its reverse (424654), we get a palindrome (4988894).

The spelling of 4564240 in words is "four million, five hundred sixty-four thousand, two hundred forty".