266438424 has 64 divisors (see below), whose sum is σ = 762474240. Its totient is φ = 76003200.

The previous prime is 266438407. The next prime is 266438429. The reversal of 266438424 is 424834662.

266438424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266438429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182899 + ... + 184349.

It is an arithmetic number, because the mean of its divisors is an integer number (11913660).

Almost surely, 2^266438424 is an apocalyptic number.

266438424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

266438424 is an abundant number, since it is smaller than the sum of its proper divisors (496035816).

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

266438424 is a wasteful number, since it uses less digits than its factorization.

266438424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560 (or 2556 counting only the distinct ones).

The product of its digits is 221184, while the sum is 39.

The square root of 266438424 is about 16322.9416466518. The cubic root of 266438424 is about 643.4758990931.

The spelling of 266438424 in words is "two hundred sixty-six million, four hundred thirty-eight thousand, four hundred twenty-four".