428616080 has 40 divisors (see below), whose sum is σ = 1009161600. Its totient is φ = 169273728.

The previous prime is 428616007. The next prime is 428616101. The reversal of 428616080 is 80616824.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 428616080.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27590 + ... + 40229.

It is an arithmetic number, because the mean of its divisors is an integer number (25229040).

Almost surely, 2^428616080 is an apocalyptic number.

428616080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

428616080 is an abundant number, since it is smaller than the sum of its proper divisors (580545520).

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

428616080 is a wasteful number, since it uses less digits than its factorization.

428616080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67911 (or 67905 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 428616080 is about 20703.0451866386. The cubic root of 428616080 is about 753.9736239768.

The spelling of 428616080 in words is "four hundred twenty-eight million, six hundred sixteen thousand, eighty".