2189860115 has 8 divisors (see below), whose sum is σ = 2628091440. Its totient is φ = 1751715232.

The previous prime is 2189860091. The next prime is 2189860121. The reversal of 2189860115 is 5110689812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2189860115 - 2⁶ = 2189860051 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67652 + ... + 94638.

It is an arithmetic number, because the mean of its divisors is an integer number (328511430).

Almost surely, 2^2189860115 is an apocalyptic number.

2189860115 is a deficient number, since it is larger than the sum of its proper divisors (438231325).

2189860115 is a wasteful number, since it uses less digits than its factorization.

2189860115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43221.

The product of its (nonzero) digits is 34560, while the sum is 41.

The square root of 2189860115 is about 46795.9412235719. The cubic root of 2189860115 is about 1298.5902103600.

The spelling of 2189860115 in words is "two billion, one hundred eighty-nine million, eight hundred sixty thousand, one hundred fifteen".