2863540 has 12 divisors (see below), whose sum is σ = 6013476. Its totient is φ = 1145408.

The previous prime is 2863519. The next prime is 2863559. The reversal of 2863540 is 453682.

It can be written as a sum of positive squares in 2 ways, for example, as 1073296 + 1790244 = 1036^2 + 1338^2 .

It is a super-2 number, since 2×2863540² = 16399722663200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2863499 and 2863508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71569 + ... + 71608.

It is an arithmetic number, because the mean of its divisors is an integer number (501123).

2^2863540 is an apocalyptic number.

2863540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2863540 is an abundant number, since it is smaller than the sum of its proper divisors (3149936).

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

2863540 is a wasteful number, since it uses less digits than its factorization.

2863540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143186 (or 143184 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2863540 is about 1692.1997518024. The cubic root of 2863540 is about 142.0041657179.

It can be divided in two parts, 2863 and 540, that added together give a triangular number (3403 = T₈₂).

The spelling of 2863540 in words is "two million, eight hundred sixty-three thousand, five hundred forty".