2560020 has 24 divisors (see below), whose sum is σ = 7168224. Its totient is φ = 682656.

The previous prime is 2559989. The next prime is 2560021. The reversal of 2560020 is 200652.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2560021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21274 + ... + 21393.

It is an arithmetic number, because the mean of its divisors is an integer number (298676).

2^2560020 is an apocalyptic number.

2560020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2560020 is an abundant number, since it is smaller than the sum of its proper divisors (4608204).

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

2560020 is a wasteful number, since it uses less digits than its factorization.

2560020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42679 (or 42677 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2560020 is about 1600.0062499878. The cubic root of 2560020 is about 136.7984319782.

Adding to 2560020 its reverse (200652), we get a palindrome (2760672).

It can be divided in two parts, 25600 and 20, that multiplied together give a cube (512000 = 80³).

The spelling of 2560020 in words is "two million, five hundred sixty thousand, twenty".