2531880 has 96 divisors (see below), whose sum is σ = 8877960. Its totient is φ = 622080.

The previous prime is 2531869. The next prime is 2531891. The reversal of 2531880 is 881352.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2531869) and next prime (2531891).

It can be written as a sum of positive squares in 4 ways, for example, as 1454436 + 1077444 = 1206^2 + 1038^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4410 + ... + 4950.

2^2531880 is an apocalyptic number.

2531880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2531880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4438980).

2531880 is an abundant number, since it is smaller than the sum of its proper divisors (6346080).

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

2531880 is a wasteful number, since it uses less digits than its factorization.

2531880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 2531880 is about 1591.1882352506. The cubic root of 2531880 is about 136.2953500527.

The spelling of 2531880 in words is "two million, five hundred thirty-one thousand, eight hundred eighty".