428984448 has 64 divisors (see below), whose sum is σ = 1176280320. Its totient is φ = 138378240.

The previous prime is 428984411. The next prime is 428984459. The reversal of 428984448 is 844489824.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 428984448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6115 + ... + 29922.

It is an arithmetic number, because the mean of its divisors is an integer number (18379380).

Almost surely, 2^428984448 is an apocalyptic number.

428984448 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

428984448 is an abundant number, since it is smaller than the sum of its proper divisors (747295872).

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

428984448 is a wasteful number, since it uses less digits than its factorization.

428984448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36085 (or 36073 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 51.

The square root of 428984448 is about 20711.9397449877. The cubic root of 428984448 is about 754.1895594338.

The spelling of 428984448 in words is "four hundred twenty-eight million, nine hundred eighty-four thousand, four hundred forty-eight".