1071090 has 32 divisors (see below), whose sum is σ = 2856960. Its totient is φ = 285552.

The previous prime is 1071067. The next prime is 1071121. The reversal of 1071090 is 901701.

It is a super-2 number, since 2×1071090² = 2294467576200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 1714 + ... + 2253.

It is an arithmetic number, because the mean of its divisors is an integer number (89280).

2^1071090 is an apocalyptic number.

1071090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1071090 is an abundant number, since it is smaller than the sum of its proper divisors (1785870).

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

1071090 is a wasteful number, since it uses less digits than its factorization.

1071090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983 (or 3977 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 18.

The square root of 1071090 is about 1034.9347805538. The cubic root of 1071090 is about 102.3156312919.

Adding to 1071090 its reverse (901701), we get a palindrome (1972791).

The spelling of 1071090 in words is "one million, seventy-one thousand, ninety".