428966881 has 8 divisors (see below), whose sum is σ = 495008384. Its totient is φ = 364115520.

The previous prime is 428966873. The next prime is 428966911. The reversal of 428966881 is 188669824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428966881 - 2³ = 428966873 is a prime.

It is a super-2 number, since 2×428966881² = 368025169989736322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428963881) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 296760 + ... + 298201.

It is an arithmetic number, because the mean of its divisors is an integer number (61876048).

Almost surely, 2^428966881 is an apocalyptic number.

It is an amenable number.

428966881 is a deficient number, since it is larger than the sum of its proper divisors (66041503).

428966881 is a wasteful number, since it uses less digits than its factorization.

428966881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595071.

The product of its digits is 1327104, while the sum is 52.

The square root of 428966881 is about 20711.5156615831. The cubic root of 428966881 is about 754.1792645549.

The spelling of 428966881 in words is "four hundred twenty-eight million, nine hundred sixty-six thousand, eight hundred eighty-one".