266310930 has 64 divisors (see below), whose sum is σ = 662722560. Its totient is φ = 68443584.

The previous prime is 266310901. The next prime is 266310937. The reversal of 266310930 is 39013662.

It is a happy number.

It is a super-2 number, since 2×266310930² = 141843022874929800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (266310937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93061 + ... + 95879.

It is an arithmetic number, because the mean of its divisors is an integer number (10355040).

Almost surely, 2^266310930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266310930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331361280).

266310930 is an abundant number, since it is smaller than the sum of its proper divisors (396411630).

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

266310930 is a wasteful number, since it uses less digits than its factorization.

266310930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 266310930 is about 16319.0358171064. The cubic root of 266310930 is about 643.3732457243.

The spelling of 266310930 in words is "two hundred sixty-six million, three hundred ten thousand, nine hundred thirty".