266674 has 4 divisors (see below), whose sum is σ = 400014. Its totient is φ = 133336.

The previous prime is 266671. The next prime is 266677. The reversal of 266674 is 476662.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 476662 = 2 ⋅238331.

It is an interprime number because it is at equal distance from previous prime (266671) and next prime (266677).

It can be written as a sum of positive squares in only one way, i.e., 154449 + 112225 = 393^2 + 335^2 .

It is a super-2 number, since 2×266674² = 142230044552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266671) 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 as a sum of consecutive naturals, namely, 66667 + ... + 66670.

2²⁶⁶⁶⁷⁴ is an apocalyptic number.

266674 is a deficient number, since it is larger than the sum of its proper divisors (133340).

266674 is a wasteful number, since it uses less digits than its factorization.

266674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133339.

The product of its digits is 12096, while the sum is 31.

The square root of 266674 is about 516.4048799150. The cubic root of 266674 is about 64.3665489896.

The spelling of 266674 in words is "two hundred sixty-six thousand, six hundred seventy-four".