266226500 has 24 divisors (see below), whose sum is σ = 581439768. Its totient is φ = 106490400.

The previous prime is 266226497. The next prime is 266226503. The reversal of 266226500 is 5622662.

It is an interprime number because it is at equal distance from previous prime (266226497) and next prime (266226503).

It can be written as a sum of positive squares in 4 ways, for example, as 12334144 + 253892356 = 3512^2 + 15934^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (266226503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265727 + ... + 266726.

It is an arithmetic number, because the mean of its divisors is an integer number (24226657).

Almost surely, 2^266226500 is an apocalyptic number.

266226500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266226500 is an abundant number, since it is smaller than the sum of its proper divisors (315213268).

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

266226500 is a wasteful number, since it uses less digits than its factorization.

266226500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532472 (or 532460 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 266226500 is about 16316.4487557802. The cubic root of 266226500 is about 643.3052478335.

The spelling of 266226500 in words is "two hundred sixty-six million, two hundred twenty-six thousand, five hundred".