431021034 has 16 divisors (see below), whose sum is σ = 957824640. Its totient is φ = 143673660.

The previous prime is 431021033. The next prime is 431021039. The reversal of 431021034 is 430120134.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 431020998 and 431021016.

It is not an unprimeable number, because it can be changed into a prime (431021033) 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 7 ways as a sum of consecutive naturals, for example, 3990882 + ... + 3990989.

It is an arithmetic number, because the mean of its divisors is an integer number (59864040).

Almost surely, 2^431021034 is an apocalyptic number.

431021034 is an abundant number, since it is smaller than the sum of its proper divisors (526803606).

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

431021034 is a wasteful number, since it uses less digits than its factorization.

431021034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7981882 (or 7981876 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 431021034 is about 20761.0460719107. The cubic root of 431021034 is about 755.3811703352.

Adding to 431021034 its reverse (430120134), we get a palindrome (861141168).

The spelling of 431021034 in words is "four hundred thirty-one million, twenty-one thousand, thirty-four".