2189880400 has 60 divisors (see below), whose sum is σ = 5373173952. Its totient is φ = 857307520.

The previous prime is 2189880377. The next prime is 2189880437. The reversal of 2189880400 is 40889812.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39442 + ... + 77041.

Almost surely, 2^2189880400 is an apocalyptic number.

2189880400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2189880400 is an abundant number, since it is smaller than the sum of its proper divisors (3183293552).

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

2189880400 is a wasteful number, since it uses less digits than its factorization.

2189880400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116548 (or 116537 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 2189880400 is about 46796.1579619524. The cubic root of 2189880400 is about 1298.5942200257.

The spelling of 2189880400 in words is "two billion, one hundred eighty-nine million, eight hundred eighty thousand, four hundred".