2520320 has 72 divisors (see below), whose sum is σ = 6622560. Its totient is φ = 911360.

The previous prime is 2520319. The next prime is 2520347. The reversal of 2520320 is 230252.

It is a junction number, because it is equal to n+sod(n) for n = 2520295 and 2520304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13991 + ... + 14169.

It is an arithmetic number, because the mean of its divisors is an integer number (91980).

2^2520320 is an apocalyptic number.

2520320 is a gapful number since it is divisible by the number (20) 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 2520320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3311280).

2520320 is an abundant number, since it is smaller than the sum of its proper divisors (4102240).

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

2520320 is a wasteful number, since it uses less digits than its factorization.

2520320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 2520320 is about 1587.5515739654. The cubic root of 2520320 is about 136.0876021533.

Adding to 2520320 its reverse (230252), we get a palindrome (2750572).

The spelling of 2520320 in words is "two million, five hundred twenty thousand, three hundred twenty".