266762730 has 32 divisors (see below), whose sum is σ = 689480064. Its totient is φ = 65664576.

The previous prime is 266762723. The next prime is 266762731. The reversal of 266762730 is 37267662.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (266762731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341614 + ... + 342393.

It is an arithmetic number, because the mean of its divisors is an integer number (21546252).

Almost surely, 2^266762730 is an apocalyptic number.

266762730 is an abundant number, since it is smaller than the sum of its proper divisors (422717334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266762730 is a wasteful number, since it uses less digits than its factorization.

266762730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684030.

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 266762730 is about 16332.8726805789. The cubic root of 266762730 is about 643.7368705652.

The spelling of 266762730 in words is "two hundred sixty-six million, seven hundred sixty-two thousand, seven hundred thirty".