266042449 has 8 divisors (see below), whose sum is σ = 280730880. Its totient is φ = 251614176.

The previous prime is 266042443. The next prime is 266042453. The reversal of 266042449 is 944240662.

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

It is a cyclic number.

It is not a de Polignac number, because 266042449 - 2¹⁷ = 265911377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (266042443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62937 + ... + 67030.

It is an arithmetic number, because the mean of its divisors is an integer number (35091360).

Almost surely, 2^266042449 is an apocalyptic number.

It is an amenable number.

266042449 is a deficient number, since it is larger than the sum of its proper divisors (14688431).

266042449 is a wasteful number, since it uses less digits than its factorization.

266042449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130079.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 266042449 is about 16310.8077359768. The cubic root of 266042449 is about 643.1569677419.

The spelling of 266042449 in words is "two hundred sixty-six million, forty-two thousand, four hundred forty-nine".