2106890358 has 8 divisors (see below), whose sum is σ = 4213780728. Its totient is φ = 702296784.

The previous prime is 2106890351. The next prime is 2106890363. The reversal of 2106890358 is 8530986012.

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

2106890358 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106890351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175574191 + ... + 175574202.

It is an arithmetic number, because the mean of its divisors is an integer number (526722591).

Almost surely, 2^2106890358 is an apocalyptic number.

2106890358 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2106890358 is a wasteful number, since it uses less digits than its factorization.

2106890358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351148398.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 2106890358 is about 45900.8753511303. The cubic root of 2106890358 is about 1281.9782151391.

The spelling of 2106890358 in words is "two billion, one hundred six million, eight hundred ninety thousand, three hundred fifty-eight".