431534434 has 4 divisors (see below), whose sum is σ = 647301654. Its totient is φ = 215767216.

The previous prime is 431534423. The next prime is 431534447. The reversal of 431534434 is 434435134.

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

It can be written as a sum of positive squares in only one way, i.e., 392158809 + 39375625 = 19803^2 + 6275^2 .

It is a junction number, because it is equal to n+sod(n) for n = 431534396 and 431534405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107883607 + ... + 107883610.

Almost surely, 2^431534434 is an apocalyptic number.

431534434 is a deficient number, since it is larger than the sum of its proper divisors (215767220).

431534434 is a wasteful number, since it uses less digits than its factorization.

431534434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215767219.

The product of its digits is 34560, while the sum is 31.

The square root of 431534434 is about 20773.4068943926. The cubic root of 431534434 is about 755.6809691742.

Adding to 431534434 its reverse (434435134), we get a palindrome (865969568).

The spelling of 431534434 in words is "four hundred thirty-one million, five hundred thirty-four thousand, four hundred thirty-four".