2189498886 has 12 divisors (see below), whose sum is σ = 4743914292. Its totient is φ = 729832956.

The previous prime is 2189498881. The next prime is 2189498887. The reversal of 2189498886 is 6888949812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189498881) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60819396 + ... + 60819431.

It is an arithmetic number, because the mean of its divisors is an integer number (395326191).

Almost surely, 2^2189498886 is an apocalyptic number.

2189498886 is an abundant number, since it is smaller than the sum of its proper divisors (2554415406).

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

2189498886 is a wasteful number, since it uses less digits than its factorization.

2189498886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121638835 (or 121638832 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 63.

The square root of 2189498886 is about 46792.0814454754. The cubic root of 2189498886 is about 1298.5188033274.

The spelling of 2189498886 in words is "two billion, one hundred eighty-nine million, four hundred ninety-eight thousand, eight hundred eighty-six".