2520648 has 48 divisors (see below), whose sum is σ = 7354620. Its totient is φ = 775296.

The previous prime is 2520631. The next prime is 2520649. The reversal of 2520648 is 8460252.

It can be written as a sum of positive squares in 2 ways, for example, as 2377764 + 142884 = 1542^2 + 378^2 .

It is not an unprimeable number, because it can be changed into a prime (2520649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411 + ... + 2282.

2^2520648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2520648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3677310).

2520648 is an abundant number, since it is smaller than the sum of its proper divisors (4833972).

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

2520648 is a wasteful number, since it uses less digits than its factorization.

2520648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718 (or 2711 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2520648 is about 1587.6548743351. The cubic root of 2520648 is about 136.0935054773.

The spelling of 2520648 in words is "two million, five hundred twenty thousand, six hundred forty-eight".