2520216 has 96 divisors (see below), whose sum is σ = 7581600. Its totient is φ = 752640.

The previous prime is 2520211. The next prime is 2520241. The reversal of 2520216 is 6120252.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35461 + ... + 35531.

It is an arithmetic number, because the mean of its divisors is an integer number (78975).

2^2520216 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 2520216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3790800).

2520216 is an abundant number, since it is smaller than the sum of its proper divisors (5061384).

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

2520216 is a wasteful number, since it uses less digits than its factorization.

2520216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2520216 is about 1587.5188187861. The cubic root of 2520216 is about 136.0857302606.

Adding to 2520216 its reverse (6120252), we get a palindrome (8640468).

The spelling of 2520216 in words is "two million, five hundred twenty thousand, two hundred sixteen".