428927448 has 16 divisors (see below), whose sum is σ = 1072318680. Its totient is φ = 142975808.

The previous prime is 428927431. The next prime is 428927449. The reversal of 428927448 is 844729824.

It is a junction number, because it is equal to n+sod(n) for n = 428927397 and 428927406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428927449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8935965 + ... + 8936012.

Almost surely, 2^428927448 is an apocalyptic number.

It is an amenable number.

428927448 is an abundant number, since it is smaller than the sum of its proper divisors (643391232).

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

428927448 is a wasteful number, since it uses less digits than its factorization.

428927448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17871986 (or 17871982 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 428927448 is about 20710.5636813680. The cubic root of 428927448 is about 754.1561544085.

The spelling of 428927448 in words is "four hundred twenty-eight million, nine hundred twenty-seven thousand, four hundred forty-eight".