266403142 has 16 divisors (see below), whose sum is σ = 420955200. Its totient is φ = 126095400.

The previous prime is 266403139. The next prime is 266403157. The reversal of 266403142 is 241304662.

It is a self number, because there is not a number n which added to its sum of digits gives 266403142.

It is a congruent number.

It is an unprimeable number.

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, 92017 + ... + 94867.

It is an arithmetic number, because the mean of its divisors is an integer number (26309700).

Almost surely, 2^266403142 is an apocalyptic number.

266403142 is a deficient number, since it is larger than the sum of its proper divisors (154552058).

266403142 is a wasteful number, since it uses less digits than its factorization.

266403142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5331.

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

The square root of 266403142 is about 16321.8608620463. The cubic root of 266403142 is about 643.4474946328.

The spelling of 266403142 in words is "two hundred sixty-six million, four hundred three thousand, one hundred forty-two".