431242431 has 8 divisors (see below), whose sum is σ = 576301440. Its totient is φ = 286839192.

The previous prime is 431242429. The next prime is 431242439. The reversal of 431242431 is 134242134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 431242431 - 2¹ = 431242429 is a prime.

It is a super-2 number, since 2×431242431² = 371940068589579522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431242439) 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, 162405 + ... + 165038.

It is an arithmetic number, because the mean of its divisors is an integer number (72037680).

Almost surely, 2^431242431 is an apocalyptic number.

431242431 is a deficient number, since it is larger than the sum of its proper divisors (145059009).

431242431 is a wasteful number, since it uses less digits than its factorization.

431242431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327885.

The product of its digits is 2304, while the sum is 24.

The square root of 431242431 is about 20766.3774163911. The cubic root of 431242431 is about 755.5104838222.

Adding to 431242431 its reverse (134242134), we get a palindrome (565484565).

The spelling of 431242431 in words is "four hundred thirty-one million, two hundred forty-two thousand, four hundred thirty-one".