428568838 has 24 divisors (see below), whose sum is σ = 661327200. Its totient is φ = 208263744.

The previous prime is 428568823. The next prime is 428568841. The reversal of 428568838 is 838865824.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 841728 + ... + 842236.

It is an arithmetic number, because the mean of its divisors is an integer number (27555300).

Almost surely, 2^428568838 is an apocalyptic number.

428568838 is a deficient number, since it is larger than the sum of its proper divisors (232758362).

428568838 is an equidigital number, since it uses as much as digits as its factorization.

428568838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 663 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 52.

The square root of 428568838 is about 20701.9042119318. The cubic root of 428568838 is about 753.9459220058.

The spelling of 428568838 in words is "four hundred twenty-eight million, five hundred sixty-eight thousand, eight hundred thirty-eight".