266948298 has 40 divisors (see below), whose sum is σ = 606382788. Its totient is φ = 87759936.

The previous prime is 266948237. The next prime is 266948299. The reversal of 266948298 is 892849662.

It is a happy number.

266948298 is a `hidden beast` number, since 266 + 94 + 8 + 298 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 251761689 + 15186609 = 15867^2 + 3897^2 .

It is a super-2 number, since 2×266948298² = 142522787610193608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (266948299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 540 + ... + 23112.

Almost surely, 2^266948298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266948298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303191394).

266948298 is an abundant number, since it is smaller than the sum of its proper divisors (339434490).

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

266948298 is a wasteful number, since it uses less digits than its factorization.

266948298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22660 (or 22651 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 266948298 is about 16338.5525062657. The cubic root of 266948298 is about 643.8861033997.

The spelling of 266948298 in words is "two hundred sixty-six million, nine hundred forty-eight thousand, two hundred ninety-eight".