266804928 has 280 divisors, whose sum is σ = 882926352. Its totient is φ = 79128576.

The previous prime is 266804893. The next prime is 266804929. The reversal of 266804928 is 829408662.

It is not an unprimeable number, because it can be changed into a prime (266804929) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2493451 + ... + 2493557.

Almost surely, 2^266804928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266804928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (441463176).

266804928 is an abundant number, since it is smaller than the sum of its proper divisors (616121424).

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

266804928 is a wasteful number, since it uses less digits than its factorization.

266804928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 266804928 is about 16334.1644414399. The cubic root of 266804928 is about 643.7708120585.

The spelling of 266804928 in words is "two hundred sixty-six million, eight hundred four thousand, nine hundred twenty-eight".