431242434 has 96 divisors (see below), whose sum is σ = 1180474560. Its totient is φ = 115952256.

The previous prime is 431242429. The next prime is 431242439. The reversal of 431242434 is 434242134.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (431242429) and next prime (431242439).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 431242398 and 431242407.

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 47 ways as a sum of consecutive naturals, for example, 40189 + ... + 49775.

It is an arithmetic number, because the mean of its divisors is an integer number (12296610).

Almost surely, 2^431242434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431242434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590237280).

431242434 is an abundant number, since it is smaller than the sum of its proper divisors (749232126).

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

431242434 is a wasteful number, since it uses less digits than its factorization.

431242434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9629 (or 9616 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 431242434 is about 20766.3774886233. The cubic root of 431242434 is about 755.5104855741.

Adding to 431242434 its reverse (434242134), we get a palindrome (865484568).

The spelling of 431242434 in words is "four hundred thirty-one million, two hundred forty-two thousand, four hundred thirty-four".