2140889808 has 20 divisors (see below), whose sum is σ = 5530632128. Its totient is φ = 713629920.

The previous prime is 2140889801. The next prime is 2140889827. The reversal of 2140889808 is 8089880412.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 44601871 = 2140889808 / (2 + 1 + 4 + 0 + 8 + 8 + 9 + 8 + 0 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140889801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22300888 + ... + 22300983.

Almost surely, 2^2140889808 is an apocalyptic number.

It is an amenable number.

2140889808 is an abundant number, since it is smaller than the sum of its proper divisors (3389742320).

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

2140889808 is a wasteful number, since it uses less digits than its factorization.

2140889808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44601882 (or 44601876 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 48.

The square root of 2140889808 is about 46269.7504639911. The cubic root of 2140889808 is about 1288.8373250918.

The spelling of 2140889808 in words is "two billion, one hundred forty million, eight hundred eighty-nine thousand, eight hundred eight".