428446016 has 14 divisors (see below), whose sum is σ = 850197690. Its totient is φ = 214222976.

The previous prime is 428446003. The next prime is 428446027. The reversal of 428446016 is 610644824.

It can be written as a sum of positive squares in only one way, i.e., 334743616 + 93702400 = 18296^2 + 9680^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3347171 + ... + 3347298.

Almost surely, 2^428446016 is an apocalyptic number.

It is an amenable number.

428446016 is a deficient number, since it is larger than the sum of its proper divisors (421751674).

428446016 is an equidigital number, since it uses as much as digits as its factorization.

428446016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6694481 (or 6694471 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 428446016 is about 20698.9375572757. The cubic root of 428446016 is about 753.8738915754.

The spelling of 428446016 in words is "four hundred twenty-eight million, four hundred forty-six thousand, sixteen".