266213332 has 48 divisors (see below), whose sum is σ = 611412480. Its totient is φ = 98258400.

The previous prime is 266213291. The next prime is 266213347. The reversal of 266213332 is 233312662.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 266213332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16894 + ... + 28597.

It is an arithmetic number, because the mean of its divisors is an integer number (12737760).

Almost surely, 2^266213332 is an apocalyptic number.

266213332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

266213332 is an abundant number, since it is smaller than the sum of its proper divisors (345199148).

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

266213332 is a wasteful number, since it uses less digits than its factorization.

266213332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45532 (or 45530 counting only the distinct ones).

The product of its digits is 7776, while the sum is 28.

The square root of 266213332 is about 16316.0452316117. The cubic root of 266213332 is about 643.2946413472.

Adding to 266213332 its reverse (233312662), we get a palindrome (499525994).

The spelling of 266213332 in words is "two hundred sixty-six million, two hundred thirteen thousand, three hundred thirty-two".