2088890 has 8 divisors (see below), whose sum is σ = 3760020. Its totient is φ = 835552.

The previous prime is 2088881. The next prime is 2088901. The reversal of 2088890 is 988802.

It can be written as a sum of positive squares in 2 ways, for example, as 1990921 + 97969 = 1411^2 + 313^2 .

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

It is a super-2 number, since 2×2088890² = 8726922864200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2088890.

It is an unprimeable number.

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, 104435 + ... + 104454.

2^2088890 is an apocalyptic number.

2088890 is a deficient number, since it is larger than the sum of its proper divisors (1671130).

2088890 is a wasteful number, since it uses less digits than its factorization.

2088890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208896.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 2088890 is about 1445.2992769665. The cubic root of 2088890 is about 127.8316879568.

The spelling of 2088890 in words is "two million, eighty-eight thousand, eight hundred ninety".