2563980 has 48 divisors (see below), whose sum is σ = 7252224. Its totient is φ = 676800.

The previous prime is 2563969. The next prime is 2563997. The reversal of 2563980 is 893652.

It is a happy number.

2563980 is a nontrivial binomial coefficient, being equal to C(2265, 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8919 + ... + 9201.

It is an arithmetic number, because the mean of its divisors is an integer number (151088).

2^2563980 is an apocalyptic number.

2563980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

2563980 is the 2264-th triangular number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2563980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3626112).

2563980 is an abundant number, since it is smaller than the sum of its proper divisors (4688244).

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

2563980 is a wasteful number, since it uses less digits than its factorization.

2563980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2563980 is about 1601.2432669648. The cubic root of 2563980 is about 136.8689317799.

The spelling of 2563980 in words is "two million, five hundred sixty-three thousand, nine hundred eighty".