266474840 has 32 divisors (see below), whose sum is σ = 609402960. Its totient is φ = 104841600.

The previous prime is 266474839. The next prime is 266474843. The reversal of 266474840 is 48474662.

266474840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266474843) 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, 52166 + ... + 57045.

Almost surely, 2^266474840 is an apocalyptic number.

266474840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266474840 is an abundant number, since it is smaller than the sum of its proper divisors (342928120).

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

266474840 is a wasteful number, since it uses less digits than its factorization.

266474840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109283 (or 109279 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 41.

The square root of 266474840 is about 16324.0570937497. The cubic root of 266474840 is about 643.5052138724.

The spelling of 266474840 in words is "two hundred sixty-six million, four hundred seventy-four thousand, eight hundred forty".