266221034 has 8 divisors (see below), whose sum is σ = 400281348. Its totient is φ = 132793920.

The previous prime is 266221013. The next prime is 266221061. The reversal of 266221034 is 430122662.

It can be written as a sum of positive squares in 2 ways, for example, as 183683809 + 82537225 = 13553^2 + 9085^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 266220994 and 266221012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157247 + ... + 158930.

Almost surely, 2^266221034 is an apocalyptic number.

266221034 is a deficient number, since it is larger than the sum of its proper divisors (134060314).

266221034 is a wasteful number, since it uses less digits than its factorization.

266221034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316600.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 266221034 is about 16316.2812552371. The cubic root of 266221034 is about 643.3008451532.

Adding to 266221034 its reverse (430122662), we get a palindrome (696343696).

The spelling of 266221034 in words is "two hundred sixty-six million, two hundred twenty-one thousand, thirty-four".