266455420 has 48 divisors (see below), whose sum is σ = 697632768. Its totient is φ = 83050560.

The previous prime is 266455369. The next prime is 266455421. The reversal of 266455420 is 24554662.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266455421) 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 15 ways as a sum of consecutive naturals, for example, 84972 + ... + 88051.

It is an arithmetic number, because the mean of its divisors is an integer number (14534016).

Almost surely, 2^266455420 is an apocalyptic number.

266455420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266455420 is an abundant number, since it is smaller than the sum of its proper divisors (431177348).

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

266455420 is a wasteful number, since it uses less digits than its factorization.

266455420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173050 (or 173048 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 266455420 is about 16323.4622552938. The cubic root of 266455420 is about 643.4895811585.

The spelling of 266455420 in words is "two hundred sixty-six million, four hundred fifty-five thousand, four hundred twenty".