434728646 has 16 divisors (see below), whose sum is σ = 712167120. Its totient is φ = 197383680.

The previous prime is 434728643. The next prime is 434728649. The reversal of 434728646 is 646827434.

It is an interprime number because it is at equal distance from previous prime (434728643) and next prime (434728649).

It is a junction number, because it is equal to n+sod(n) for n = 434728597 and 434728606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434728643) 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, 10070 + ... + 31158.

It is an arithmetic number, because the mean of its divisors is an integer number (44510445).

Almost surely, 2^434728646 is an apocalyptic number.

434728646 is a deficient number, since it is larger than the sum of its proper divisors (277438474).

434728646 is a wasteful number, since it uses less digits than its factorization.

434728646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22039.

The product of its digits is 774144, while the sum is 44.

The square root of 434728646 is about 20850.1473855702. The cubic root of 434728646 is about 757.5409010436.

The spelling of 434728646 in words is "four hundred thirty-four million, seven hundred twenty-eight thousand, six hundred forty-six".