2563140 has 24 divisors (see below), whose sum is σ = 7176960. Its totient is φ = 683488.

The previous prime is 2563139. The next prime is 2563147. The reversal of 2563140 is 413652.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2563147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21300 + ... + 21419.

It is an arithmetic number, because the mean of its divisors is an integer number (299040).

2^2563140 is an apocalyptic number.

2563140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2563140 is an abundant number, since it is smaller than the sum of its proper divisors (4613820).

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

2563140 is a wasteful number, since it uses less digits than its factorization.

2563140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42731 (or 42729 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2563140 is about 1600.9809492933. The cubic root of 2563140 is about 136.8539833456.

Adding to 2563140 its reverse (413652), we get a palindrome (2976792).

The spelling of 2563140 in words is "two million, five hundred sixty-three thousand, one hundred forty".