266290047 has 12 divisors (see below), whose sum is σ = 388964160. Its totient is φ = 175531488.

The previous prime is 266290033. The next prime is 266290049. The reversal of 266290047 is 740092662.

It is a happy number.

266290047 is a `hidden beast` number, since 26 + 629 + 0 + 0 + 4 + 7 = 666.

It is not a de Polignac number, because 266290047 - 2¹⁸ = 266027903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266289993 and 266290020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266290049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165423 + ... + 167024.

It is an arithmetic number, because the mean of its divisors is an integer number (32413680).

Almost surely, 2^266290047 is an apocalyptic number.

266290047 is a deficient number, since it is larger than the sum of its proper divisors (122674113).

266290047 is a wasteful number, since it uses less digits than its factorization.

266290047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332542 (or 332539 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 266290047 is about 16318.3959689670. The cubic root of 266290047 is about 643.3564283964.

The spelling of 266290047 in words is "two hundred sixty-six million, two hundred ninety thousand, forty-seven".