428871051 has 16 divisors (see below), whose sum is σ = 726131200. Its totient is φ = 245069064.

The previous prime is 428871031. The next prime is 428871083. The reversal of 428871051 is 150178824.

It is not a de Polignac number, because 428871051 - 2²⁶ = 361762187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428870997 and 428871015.

It is not an unprimeable number, because it can be changed into a prime (428871011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1134391 + ... + 1134768.

It is an arithmetic number, because the mean of its divisors is an integer number (45383200).

Almost surely, 2^428871051 is an apocalyptic number.

428871051 is a deficient number, since it is larger than the sum of its proper divisors (297260149).

428871051 is a wasteful number, since it uses less digits than its factorization.

428871051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269175 (or 2269169 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 428871051 is about 20709.2020850635. The cubic root of 428871051 is about 754.1230998604.

The spelling of 428871051 in words is "four hundred twenty-eight million, eight hundred seventy-one thousand, fifty-one".