4482640 has 40 divisors (see below), whose sum is σ = 10523880. Its totient is φ = 1775616.

The previous prime is 4482637. The next prime is 4482641. The reversal of 4482640 is 462844.

It can be written as a sum of positive squares in 4 ways, for example, as 1468944 + 3013696 = 1212^2 + 1736^2 .

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

It is a super-2 number, since 2×4482640² = 40188122739200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4482599 and 4482608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4482641) 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, 10756 + ... + 11164.

It is an arithmetic number, because the mean of its divisors is an integer number (263097).

Almost surely, 2^4482640 is an apocalyptic number.

4482640 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 4482640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5261940).

4482640 is an abundant number, since it is smaller than the sum of its proper divisors (6041240).

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

4482640 is a wasteful number, since it uses less digits than its factorization.

4482640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 4482640 is about 2117.2245983835. The cubic root of 4482640 is about 164.8837871611.

The spelling of 4482640 in words is "four million, four hundred eighty-two thousand, six hundred forty".