428016424946 has 24 divisors (see below), whose sum is σ = 713625712380. Its totient is φ = 192366922880.

The previous prime is 428016424939. The next prime is 428016424967. The reversal of 428016424946 is 649424610824.

It can be written as a sum of positive squares in 2 ways, for example, as 325939369921 + 102077055025 = 570911^2 + 319495^2 .

It is a super-2 number, since 2×428016424946² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 428016424894 and 428016424903.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9914771 + ... + 9957846.

Almost surely, 2^428016424946 is an apocalyptic number.

428016424946 is a deficient number, since it is larger than the sum of its proper divisors (285609287434).

428016424946 is a wasteful number, since it uses less digits than its factorization.

428016424946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19872730 (or 19872719 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 428016424946 in words is "four hundred twenty-eight billion, sixteen million, four hundred twenty-four thousand, nine hundred forty-six".