428630234 has 16 divisors (see below), whose sum is σ = 678192480. Its totient is φ = 202613040.

The previous prime is 428630203. The next prime is 428630243. The reversal of 428630234 is 432036824.

It is a self number, because there is not a number n which added to its sum of digits gives 428630234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7172 + ... + 30144.

It is an arithmetic number, because the mean of its divisors is an integer number (42387030).

Almost surely, 2^428630234 is an apocalyptic number.

428630234 is a deficient number, since it is larger than the sum of its proper divisors (249562246).

428630234 is a wasteful number, since it uses less digits than its factorization.

428630234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23485.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 428630234 is about 20703.3870175872. The cubic root of 428630234 is about 753.9819232650.

The spelling of 428630234 in words is "four hundred twenty-eight million, six hundred thirty thousand, two hundred thirty-four".