266900340 has 192 divisors, whose sum is σ = 936230400. Its totient is φ = 55394304.

The previous prime is 266900299. The next prime is 266900341. The reversal of 266900340 is 43009662.

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 = 266900298 and 266900307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266900341) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 206416 + ... + 207704.

It is an arithmetic number, because the mean of its divisors is an integer number (4876200).

Almost surely, 2^266900340 is an apocalyptic number.

266900340 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 266900340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468115200).

266900340 is an abundant number, since it is smaller than the sum of its proper divisors (669330060).

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

266900340 is a wasteful number, since it uses less digits than its factorization.

266900340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354 (or 1352 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 266900340 is about 16337.0848072721. The cubic root of 266900340 is about 643.8475424507.

The spelling of 266900340 in words is "two hundred sixty-six million, nine hundred thousand, three hundred forty".