266471040 has 384 divisors, whose sum is σ = 989775360. Its totient is φ = 60825600.

The previous prime is 266471017. The next prime is 266471083. The reversal of 266471040 is 40174662.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 266470989 and 266471007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7201902 + ... + 7201938.

It is an arithmetic number, because the mean of its divisors is an integer number (2577540).

Almost surely, 2^266471040 is an apocalyptic number.

266471040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266471040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494887680).

266471040 is an abundant number, since it is smaller than the sum of its proper divisors (723304320).

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

266471040 is a wasteful number, since it uses less digits than its factorization.

266471040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 266471040 is about 16323.9407007009. The cubic root of 266471040 is about 643.5021550078.

The spelling of 266471040 in words is "two hundred sixty-six million, four hundred seventy-one thousand, forty".