266144090 has 24 divisors (see below), whose sum is σ = 484034940. Its totient is φ = 105363200.

The previous prime is 266144089. The next prime is 266144141. The reversal of 266144090 is 90441662.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 245831041 + 20313049 = 15679^2 + 4507^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100706 + ... + 103314.

Almost surely, 2^266144090 is an apocalyptic number.

266144090 is a deficient number, since it is larger than the sum of its proper divisors (217890850).

266144090 is a wasteful number, since it uses less digits than its factorization.

266144090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818 (or 2717 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 266144090 is about 16313.9231946212. The cubic root of 266144090 is about 643.2388629362.

The spelling of 266144090 in words is "two hundred sixty-six million, one hundred forty-four thousand, ninety".