434140828 has 24 divisors (see below), whose sum is σ = 830027520. Its totient is φ = 197047920.

The previous prime is 434140813. The next prime is 434140829. The reversal of 434140828 is 828041434.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 434140793 and 434140802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434140829) 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, 24775 + ... + 38497.

It is an arithmetic number, because the mean of its divisors is an integer number (34584480).

Almost surely, 2^434140828 is an apocalyptic number.

It is an amenable number.

434140828 is a deficient number, since it is larger than the sum of its proper divisors (395886692).

434140828 is a wasteful number, since it uses less digits than its factorization.

434140828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14457 (or 14455 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 434140828 is about 20836.0463620141. The cubic root of 434140828 is about 757.1993109239.

The spelling of 434140828 in words is "four hundred thirty-four million, one hundred forty thousand, eight hundred twenty-eight".