266962740 has 48 divisors (see below), whose sum is σ = 815451840. Its totient is φ = 64718080.

The previous prime is 266962739. The next prime is 266962789. The reversal of 266962740 is 47269662.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 266962692 and 266962701.

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, 201585 + ... + 202904.

It is an arithmetic number, because the mean of its divisors is an integer number (16988580).

Almost surely, 2^266962740 is an apocalyptic number.

266962740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266962740 is an abundant number, since it is smaller than the sum of its proper divisors (548489100).

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

266962740 is a wasteful number, since it uses less digits than its factorization.

266962740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404512 (or 404510 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 266962740 is about 16338.9944611044. The cubic root of 266962740 is about 643.8977146811.

The spelling of 266962740 in words is "two hundred sixty-six million, nine hundred sixty-two thousand, seven hundred forty".