2063540 has 12 divisors (see below), whose sum is σ = 4333476. Its totient is φ = 825408.

The previous prime is 2063539. The next prime is 2063543. The reversal of 2063540 is 453602.

It can be written as a sum of positive squares in 2 ways, for example, as 795664 + 1267876 = 892^2 + 1126^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 103177 = 2063540 / (2 + 0 + 6 + 3 + 5 + 4 + 0).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2063543) 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, 51569 + ... + 51608.

It is an arithmetic number, because the mean of its divisors is an integer number (361123).

2^2063540 is an apocalyptic number.

2063540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2063540 is an abundant number, since it is smaller than the sum of its proper divisors (2269936).

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

2063540 is a wasteful number, since it uses less digits than its factorization.

2063540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103186 (or 103184 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2063540 is about 1436.5026975262. The cubic root of 2063540 is about 127.3124758347.

The spelling of 2063540 in words is "two million, sixty-three thousand, five hundred forty".