266062420 has 24 divisors (see below), whose sum is σ = 601710984. Its totient is φ = 98238336.

The previous prime is 266062399. The next prime is 266062421. The reversal of 266062420 is 24260662.

It can be written as a sum of positive squares in 4 ways, for example, as 35569296 + 230493124 = 5964^2 + 15182^2 .

It is a super-4 number, since 4×266062420⁴ (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266062421) 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 7 ways as a sum of consecutive naturals, for example, 511399 + ... + 511918.

It is an arithmetic number, because the mean of its divisors is an integer number (25071291).

Almost surely, 2^266062420 is an apocalyptic number.

266062420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266062420 is an abundant number, since it is smaller than the sum of its proper divisors (335648564).

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

266062420 is a wasteful number, since it uses less digits than its factorization.

266062420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023339 (or 1023337 counting only the distinct ones).

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

The square root of 266062420 is about 16311.4199259292. The cubic root of 266062420 is about 643.1730606204.

The spelling of 266062420 in words is "two hundred sixty-six million, sixty-two thousand, four hundred twenty".