426404133 has 12 divisors (see below), whose sum is σ = 627538860. Its totient is φ = 278905536.

The previous prime is 426404119. The next prime is 426404189. The reversal of 426404133 is 331404624.

426404133 is a `hidden beast` number, since 4 + 2 + 640 + 4 + 13 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 105206049 + 321198084 = 10257^2 + 17922^2 .

It is not a de Polignac number, because 426404133 - 2²² = 422209829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 426404097 and 426404106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426404233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 446488 + ... + 447441.

It is an arithmetic number, because the mean of its divisors is an integer number (52294905).

Almost surely, 2^426404133 is an apocalyptic number.

It is an amenable number.

426404133 is a deficient number, since it is larger than the sum of its proper divisors (201134727).

426404133 is a wasteful number, since it uses less digits than its factorization.

426404133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893988 (or 893985 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 426404133 is about 20649.5552736615. Note that the first 3 decimals coincide. The cubic root of 426404133 is about 752.6743828997.

Adding to 426404133 its reverse (331404624), we get a palindrome (757808757).

The spelling of 426404133 in words is "four hundred twenty-six million, four hundred four thousand, one hundred thirty-three".