266323040 has 48 divisors (see below), whose sum is σ = 646207632. Its totient is φ = 103647744.

The previous prime is 266323007. The next prime is 266323051. The reversal of 266323040 is 40323662.

266323040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16574 + ... + 28413.

It is an arithmetic number, because the mean of its divisors is an integer number (13462659).

Almost surely, 2^266323040 is an apocalyptic number.

266323040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266323040 is an abundant number, since it is smaller than the sum of its proper divisors (379884592).

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

266323040 is a wasteful number, since it uses less digits than its factorization.

266323040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45039 (or 45031 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 266323040 is about 16319.4068519662. The cubic root of 266323040 is about 643.3829976484.

The spelling of 266323040 in words is "two hundred sixty-six million, three hundred twenty-three thousand, forty".