4585640 has 16 divisors (see below), whose sum is σ = 10317780. Its totient is φ = 1834240.

The previous prime is 4585621. The next prime is 4585687. The reversal of 4585640 is 465854.

It can be written as a sum of positive squares in 2 ways, for example, as 4553956 + 31684 = 2134^2 + 178^2 .

It is a d-powerful number, because it can be written as 4² + 5⁴ + 8² + 5⁸ + 6 + 4¹¹ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 4585597 and 4585606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57281 + ... + 57360.

Almost surely, 2^4585640 is an apocalyptic number.

4585640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4585640 is an abundant number, since it is smaller than the sum of its proper divisors (5732140).

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

4585640 is a wasteful number, since it uses less digits than its factorization.

4585640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114652 (or 114648 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 4585640 is about 2141.4107499497. The cubic root of 4585640 is about 166.1371103136.

It can be divided in two parts, 4585 and 640, that added together give a palindrome (5225).

The spelling of 4585640 in words is "four million, five hundred eighty-five thousand, six hundred forty".