266340434 has 8 divisors (see below), whose sum is σ = 403466508. Its totient is φ = 131851600.

The previous prime is 266340407. The next prime is 266340509. The reversal of 266340434 is 434043662.

It can be written as a sum of positive squares in 2 ways, for example, as 265592209 + 748225 = 16297^2 + 865^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 266340434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659057 + ... + 659460.

Almost surely, 2^266340434 is an apocalyptic number.

266340434 is a deficient number, since it is larger than the sum of its proper divisors (137126074).

266340434 is a wasteful number, since it uses less digits than its factorization.

266340434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318620.

The product of its (nonzero) digits is 41472, while the sum is 32.

The square root of 266340434 is about 16319.9397670457. The cubic root of 266340434 is about 643.3970041475.

The spelling of 266340434 in words is "two hundred sixty-six million, three hundred forty thousand, four hundred thirty-four".