269890 has 16 divisors (see below), whose sum is σ = 491832. Its totient is φ = 106624.

The previous prime is 269887. The next prime is 269891. The reversal of 269890 is 98962.

It can be written as a sum of positive squares in 4 ways, for example, as 267289 + 2601 = 517^2 + 51^2 .

It is a super-2 number, since 2×269890² = 145681224200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (269891) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1272 + ... + 1468.

2²⁶⁹⁸⁹⁰ is an apocalyptic number.

269890 is a deficient number, since it is larger than the sum of its proper divisors (221942).

269890 is a wasteful number, since it uses less digits than its factorization.

269890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341.

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

The square root of 269890 is about 519.5093839383. The cubic root of 269890 is about 64.6242621822.

The spelling of 269890 in words is "two hundred sixty-nine thousand, eight hundred ninety".