428904768 has 28 divisors (see below), whose sum is σ = 1134811040. Its totient is φ = 142968192.

The previous prime is 428904737. The next prime is 428904793. The reversal of 428904768 is 867409824.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 1116748 + ... + 1117131.

Almost surely, 2^428904768 is an apocalyptic number.

428904768 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

428904768 is an abundant number, since it is smaller than the sum of its proper divisors (705906272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428904768 is a wasteful number, since it uses less digits than its factorization.

428904768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233894 (or 2233884 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 428904768 is about 20710.0161274684. The cubic root of 428904768 is about 754.1428619017.

The spelling of 428904768 in words is "four hundred twenty-eight million, nine hundred four thousand, seven hundred sixty-eight".