2069890 has 16 divisors (see below), whose sum is σ = 3742200. Its totient is φ = 824320.

The previous prime is 2069887. The next prime is 2069909. The reversal of 2069890 is 989602.

It can be written as a sum of positive squares in 4 ways, for example, as 1595169 + 474721 = 1263^2 + 689^2 .

It is a super-2 number, since 2×2069890² = 8568889224200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4260 + ... + 4720.

2^2069890 is an apocalyptic number.

2069890 is a deficient number, since it is larger than the sum of its proper divisors (1672310).

2069890 is a wasteful number, since it uses less digits than its factorization.

2069890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 2069890 is about 1438.7112288434. The cubic root of 2069890 is about 127.4429322976.

The spelling of 2069890 in words is "two million, sixty-nine thousand, eight hundred ninety".