428443635 has 16 divisors (see below), whose sum is σ = 721589760. Its totient is φ = 216476640.

The previous prime is 428443601. The next prime is 428443649. The reversal of 428443635 is 536344824.

It is not a de Polignac number, because 428443635 - 2¹³ = 428435443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 428443593 and 428443602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751371 + ... + 751940.

It is an arithmetic number, because the mean of its divisors is an integer number (45099360).

Almost surely, 2^428443635 is an apocalyptic number.

428443635 is a deficient number, since it is larger than the sum of its proper divisors (293146125).

428443635 is a wasteful number, since it uses less digits than its factorization.

428443635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503338.

The product of its digits is 276480, while the sum is 39.

The square root of 428443635 is about 20698.8800421665. The cubic root of 428443635 is about 753.8724950735.

The spelling of 428443635 in words is "four hundred twenty-eight million, four hundred forty-three thousand, six hundred thirty-five".