428548056 has 32 divisors (see below), whose sum is σ = 1079198640. Its totient is φ = 141805568.

The previous prime is 428548049. The next prime is 428548063. The reversal of 428548056 is 650845824.

It is an interprime number because it is at equal distance from previous prime (428548049) and next prime (428548063).

It is a junction number, because it is equal to n+sod(n) for n = 428547999 and 428548017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61881 + ... + 68456.

Almost surely, 2^428548056 is an apocalyptic number.

It is an amenable number.

428548056 is an abundant number, since it is smaller than the sum of its proper divisors (650650584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428548056 is a wasteful number, since it uses less digits than its factorization.

428548056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130483 (or 130479 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The square root of 428548056 is about 20701.4022713438. The cubic root of 428548056 is about 753.9337351208.

The spelling of 428548056 in words is "four hundred twenty-eight million, five hundred forty-eight thousand, fifty-six".