266913792 has 120 divisors (see below), whose sum is σ = 797746950. Its totient is φ = 88915968.

The previous prime is 266913763. The next prime is 266913793. The reversal of 266913792 is 297319662.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 153363456 + 113550336 = 12384^2 + 10656^2 .

It is a super-4 number, since 4×266913792⁴ (a number of 35 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (266913793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 165084 + ... + 166692.

Almost surely, 2^266913792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266913792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398873475).

266913792 is an abundant number, since it is smaller than the sum of its proper divisors (530833158).

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

266913792 is an equidigital number, since it uses as much as digits as its factorization.

266913792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643 (or 1614 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 266913792 is about 16337.4965034426. The cubic root of 266913792 is about 643.8583590869.

It can be divided in two parts, 2669 and 13792, that added together give a palindrome (16461).

The spelling of 266913792 in words is "two hundred sixty-six million, nine hundred thirteen thousand, seven hundred ninety-two".