428425544 has 16 divisors (see below), whose sum is σ = 809431920. Its totient is φ = 212577040.

The previous prime is 428425519. The next prime is 428425589. The reversal of 428425544 is 445524824.

It is a junction number, because it is equal to n+sod(n) for n = 428425498 and 428425507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203354 + ... + 205449.

It is an arithmetic number, because the mean of its divisors is an integer number (50589495).

Almost surely, 2^428425544 is an apocalyptic number.

It is an amenable number.

428425544 is a deficient number, since it is larger than the sum of its proper divisors (381006376).

428425544 is a wasteful number, since it uses less digits than its factorization.

428425544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408940 (or 408936 counting only the distinct ones).

The product of its digits is 204800, while the sum is 38.

The square root of 428425544 is about 20698.4430332332. The cubic root of 428425544 is about 753.8618841878.

The spelling of 428425544 in words is "four hundred twenty-eight million, four hundred twenty-five thousand, five hundred forty-four".