428404571 has 32 divisors (see below), whose sum is σ = 531632640. Its totient is φ = 337042944.

The previous prime is 428404519. The next prime is 428404619. The reversal of 428404571 is 175404824.

It is not a de Polignac number, because 428404571 - 2¹⁴ = 428388187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428404271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 989171 + ... + 989603.

It is an arithmetic number, because the mean of its divisors is an integer number (16613520).

Almost surely, 2^428404571 is an apocalyptic number.

428404571 is a deficient number, since it is larger than the sum of its proper divisors (103228069).

428404571 is a wasteful number, since it uses less digits than its factorization.

428404571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 428404571 is about 20697.9363947230. The cubic root of 428404571 is about 753.8495825534.

The spelling of 428404571 in words is "four hundred twenty-eight million, four hundred four thousand, five hundred seventy-one".