2520756 has 54 divisors (see below), whose sum is σ = 7417410. Its totient is φ = 719712.

The previous prime is 2520697. The next prime is 2520769. The reversal of 2520756 is 6570252.

It can be written as a sum of positive squares in only one way, i.e., 1587600 + 933156 = 1260^2 + 966^2 .

2520756 is a modest number, since divided by 756 gives 252 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1050 + ... + 2478.

2^2520756 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 2520756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3708705).

2520756 is an abundant number, since it is smaller than the sum of its proper divisors (4896654).

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

2520756 is a wasteful number, since it uses less digits than its factorization.

2520756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453 (or 1441 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 2520756 is about 1587.6888864006. The cubic root of 2520756 is about 136.0954491427.

The spelling of 2520756 in words is "two million, five hundred twenty thousand, seven hundred fifty-six".