2868520 has 16 divisors (see below), whose sum is σ = 6454260. Its totient is φ = 1147392.

The previous prime is 2868511. The next prime is 2868527. The reversal of 2868520 is 258682.

2868520 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2762244 + 106276 = 1662^2 + 326^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2868527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35817 + ... + 35896.

2^2868520 is an apocalyptic number.

2868520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2868520 is an abundant number, since it is smaller than the sum of its proper divisors (3585740).

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

2868520 is a wasteful number, since it uses less digits than its factorization.

2868520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71724 (or 71720 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2868520 is about 1693.6705700933. The cubic root of 2868520 is about 142.0864381484.

The spelling of 2868520 in words is "two million, eight hundred sixty-eight thousand, five hundred twenty".