266053240 has 32 divisors (see below), whose sum is σ = 602095680. Its totient is φ = 105803392.

The previous prime is 266053231. The next prime is 266053267. The reversal of 266053240 is 42350662.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 266053199 and 266053208.

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, 12304 + ... + 26143.

It is an arithmetic number, because the mean of its divisors is an integer number (18815490).

Almost surely, 2^266053240 is an apocalyptic number.

266053240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266053240 is an abundant number, since it is smaller than the sum of its proper divisors (336042440).

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

266053240 is a wasteful number, since it uses less digits than its factorization.

266053240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38631 (or 38627 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 266053240 is about 16311.1385255598. The cubic root of 266053240 is about 643.1656633630.

The spelling of 266053240 in words is "two hundred sixty-six million, fifty-three thousand, two hundred forty".