266674426 has 4 divisors (see below), whose sum is σ = 400011642. Its totient is φ = 133337212.

The previous prime is 266674417. The next prime is 266674439. The reversal of 266674426 is 624476662.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 251064025 + 15610401 = 15845^2 + 3951^2 .

It is a super-2 number, since 2×266674426² = 142230498964858952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66668605 + ... + 66668608.

Almost surely, 2^266674426 is an apocalyptic number.

266674426 is a deficient number, since it is larger than the sum of its proper divisors (133337216).

266674426 is a wasteful number, since it uses less digits than its factorization.

266674426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133337215.

The product of its digits is 580608, while the sum is 43.

The square root of 266674426 is about 16330.1691969189. The cubic root of 266674426 is about 643.6658326382.

The spelling of 266674426 in words is "two hundred sixty-six million, six hundred seventy-four thousand, four hundred twenty-six".