1090269 has 18 divisors (see below), whose sum is σ = 1653470. Its totient is φ = 692208.

The previous prime is 1090267. The next prime is 1090273. The reversal of 1090269 is 9620901.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1071225 + 19044 = 1035^2 + 138^2 .

It is not a de Polignac number, because 1090269 - 2¹ = 1090267 is a prime.

It is a super-2 number, since 2×1090269² = 2377372984722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090267) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4647 + ... + 4875.

2^1090269 is an apocalyptic number.

It is an amenable number.

1090269 is a deficient number, since it is larger than the sum of its proper divisors (563201).

1090269 is a wasteful number, since it uses less digits than its factorization.

1090269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 1090269 is about 1044.1594705791. The cubic root of 1090269 is about 102.9227119952.

The spelling of 1090269 in words is "one million, ninety thousand, two hundred sixty-nine".