266730 has 32 divisors (see below), whose sum is σ = 679104. Its totient is φ = 66816.

The previous prime is 266719. The next prime is 266759. The reversal of 266730 is 37662.

It is a super-2 number, since 2×266730² = 142289785800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 266730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249 + ... + 771.

It is an arithmetic number, because the mean of its divisors is an integer number (21222).

2²⁶⁶⁷³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339552).

266730 is an abundant number, since it is smaller than the sum of its proper divisors (412374).

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

266730 is a wasteful number, since it uses less digits than its factorization.

266730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 266730 is about 516.4590980901. The cubic root of 266730 is about 64.3710542088.

The spelling of 266730 in words is "two hundred sixty-six thousand, seven hundred thirty".