266238445 has 16 divisors (see below), whose sum is σ = 369033408. Its totient is φ = 182237440.

The previous prime is 266238439. The next prime is 266238449. The reversal of 266238445 is 544832662.

It is not a de Polignac number, because 266238445 - 2³ = 266238437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266238398 and 266238407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266238449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141439 + ... + 143308.

It is an arithmetic number, because the mean of its divisors is an integer number (23064588).

Almost surely, 2^266238445 is an apocalyptic number.

It is an amenable number.

266238445 is a deficient number, since it is larger than the sum of its proper divisors (102794963).

266238445 is a wasteful number, since it uses less digits than its factorization.

266238445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284780.

The product of its digits is 276480, while the sum is 40.

The square root of 266238445 is about 16316.8147933351. The cubic root of 266238445 is about 643.3148689222.

The spelling of 266238445 in words is "two hundred sixty-six million, two hundred thirty-eight thousand, four hundred forty-five".