426235531 has 4 divisors (see below), whose sum is σ = 448669000. Its totient is φ = 403802064.

The previous prime is 426235519. The next prime is 426235541. The reversal of 426235531 is 135532624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 426235531 - 2⁵ = 426235499 is a prime.

It is a super-2 number, since 2×426235531² = 363353455773703922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 426235493 and 426235502.

It is not an unprimeable number, because it can be changed into a prime (426235541) 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 3 ways as a sum of consecutive naturals, for example, 11216706 + ... + 11216743.

It is an arithmetic number, because the mean of its divisors is an integer number (112167250).

Almost surely, 2^426235531 is an apocalyptic number.

426235531 is a deficient number, since it is larger than the sum of its proper divisors (22433469).

426235531 is a wasteful number, since it uses less digits than its factorization.

426235531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22433468.

The product of its digits is 21600, while the sum is 31.

The square root of 426235531 is about 20645.4724092233. The cubic root of 426235531 is about 752.5751662754.

It can be divided in two parts, 4262 and 35531, that added together give a palindrome (39793).

The spelling of 426235531 in words is "four hundred twenty-six million, two hundred thirty-five thousand, five hundred thirty-one".