431235426 has 16 divisors (see below), whose sum is σ = 862817184. Its totient is φ = 143687424.

The previous prime is 431235421. The next prime is 431235439. The reversal of 431235426 is 624532134.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 431235393 and 431235402.

It is not an unprimeable number, because it can be changed into a prime (431235421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3465 + ... + 29571.

It is an arithmetic number, because the mean of its divisors is an integer number (53926074).

Almost surely, 2^431235426 is an apocalyptic number.

431235426 is an abundant number, since it is smaller than the sum of its proper divisors (431581758).

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

431235426 is a wasteful number, since it uses less digits than its factorization.

431235426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28865.

The product of its digits is 17280, while the sum is 30.

The square root of 431235426 is about 20766.2087536459. The cubic root of 431235426 is about 755.5063930222.

The spelling of 431235426 in words is "four hundred thirty-one million, two hundred thirty-five thousand, four hundred twenty-six".