266260420 has 24 divisors (see below), whose sum is σ = 583458624. Its totient is φ = 101873376.

The previous prime is 266260417. The next prime is 266260427. The reversal of 266260420 is 24062662.

It is a super-2 number, since 2×266260420² = 141789222517152800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266260427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288954 + ... + 289873.

It is an arithmetic number, because the mean of its divisors is an integer number (24310776).

Almost surely, 2^266260420 is an apocalyptic number.

266260420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266260420 is an abundant number, since it is smaller than the sum of its proper divisors (317198204).

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

266260420 is a wasteful number, since it uses less digits than its factorization.

266260420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578859 (or 578857 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 266260420 is about 16317.4881645430. The cubic root of 266260420 is about 643.3325679129.

The spelling of 266260420 in words is "two hundred sixty-six million, two hundred sixty thousand, four hundred twenty".