428833868 has 12 divisors (see below), whose sum is σ = 754017432. Its totient is φ = 213400320.

The previous prime is 428833849. The next prime is 428833877. The reversal of 428833868 is 868338824.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253205 + ... + 254892.

It is an arithmetic number, because the mean of its divisors is an integer number (62834786).

Almost surely, 2^428833868 is an apocalyptic number.

It is an amenable number.

428833868 is a deficient number, since it is larger than the sum of its proper divisors (325183564).

428833868 is a wasteful number, since it uses less digits than its factorization.

428833868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508312 (or 508310 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 50.

The square root of 428833868 is about 20708.3043245940. The cubic root of 428833868 is about 754.1013051434.

The spelling of 428833868 in words is "four hundred twenty-eight million, eight hundred thirty-three thousand, eight hundred sixty-eight".