275890 has 16 divisors (see below), whose sum is σ = 508032. Its totient is φ = 107824.

The previous prime is 275881. The next prime is 275897. The reversal of 275890 is 98572.

275890 = T₈₄ + T₈₅ + ... + T₁₃₀.

It is a super-2 number, since 2×275890² = 152230584200, which contains 22 as substring.

It is a plaindrome in base 12.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (275897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177 + ... + 763.

It is an arithmetic number, because the mean of its divisors is an integer number (31752).

2²⁷⁵⁸⁹⁰ is an apocalyptic number.

275890 is a deficient number, since it is larger than the sum of its proper divisors (232142).

275890 is a wasteful number, since it uses less digits than its factorization.

275890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 275890 is about 525.2523203185. The cubic root of 275890 is about 65.0996499124.

The spelling of 275890 in words is "two hundred seventy-five thousand, eight hundred ninety".