266026238 has 4 divisors (see below), whose sum is σ = 399039360. Its totient is φ = 133013118.

The previous prime is 266026231. The next prime is 266026253. The reversal of 266026238 is 832620662.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 266026198 and 266026207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266026231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66506558 + ... + 66506561.

It is an arithmetic number, because the mean of its divisors is an integer number (99759840).

Almost surely, 2^266026238 is an apocalyptic number.

266026238 is a deficient number, since it is larger than the sum of its proper divisors (133013122).

266026238 is a wasteful number, since it uses less digits than its factorization.

266026238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133013121.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 266026238 is about 16310.3107879648. The cubic root of 266026238 is about 643.1439041256.

The spelling of 266026238 in words is "two hundred sixty-six million, twenty-six thousand, two hundred thirty-eight".