434728628 has 12 divisors (see below), whose sum is σ = 767508420. Its totient is φ = 215440512.

The previous prime is 434728621. The next prime is 434728643. The reversal of 434728628 is 826827434.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50098084 + 384630544 = 7078^2 + 19612^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434728621) 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 3 ways as a sum of consecutive naturals, for example, 480443 + ... + 481346.

It is an arithmetic number, because the mean of its divisors is an integer number (63959035).

Almost surely, 2^434728628 is an apocalyptic number.

It is an amenable number.

434728628 is a deficient number, since it is larger than the sum of its proper divisors (332779792).

434728628 is a wasteful number, since it uses less digits than its factorization.

434728628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961906 (or 961904 counting only the distinct ones).

The product of its digits is 516096, while the sum is 44.

The square root of 434728628 is about 20850.1469539186. The cubic root of 434728628 is about 757.5408905882.

The spelling of 434728628 in words is "four hundred thirty-four million, seven hundred twenty-eight thousand, six hundred twenty-eight".