2143880 has 16 divisors (see below), whose sum is σ = 4823820. Its totient is φ = 857536.

The previous prime is 2143877. The next prime is 2143901. The reversal of 2143880 is 883412.

It can be written as a sum of positive squares in 2 ways, for example, as 2079364 + 64516 = 1442^2 + 254^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26759 + ... + 26838.

2^2143880 is an apocalyptic number.

2143880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143880 is an abundant number, since it is smaller than the sum of its proper divisors (2679940).

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

2143880 is a wasteful number, since it uses less digits than its factorization.

2143880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53608 (or 53604 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 2143880 is about 1464.1994399671. The cubic root of 2143880 is about 128.9437087894.

The spelling of 2143880 in words is "two million, one hundred forty-three thousand, eight hundred eighty".