1069890 has 32 divisors (see below), whose sum is σ = 2704320. Its totient is φ = 270144.

The previous prime is 1069867. The next prime is 1069919. The reversal of 1069890 is 989601.

It is a happy number.

It is a super-2 number, since 2×1069890² = 2289329224200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369 + ... + 1508.

It is an arithmetic number, because the mean of its divisors is an integer number (84510).

2^1069890 is an apocalyptic number.

1069890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1069890 is an abundant number, since it is smaller than the sum of its proper divisors (1634430).

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

1069890 is a wasteful number, since it uses less digits than its factorization.

1069890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1069890 is about 1034.3548714054. The cubic root of 1069890 is about 102.2774071035.

The spelling of 1069890 in words is "one million, sixty-nine thousand, eight hundred ninety".