428217848 has 16 divisors (see below), whose sum is σ = 804525000. Its totient is φ = 213677856.

The previous prime is 428217847. The next prime is 428217851. The reversal of 428217848 is 848712824.

It is a super-2 number, since 2×428217848² = 366741050691502208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 428217799 and 428217808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428217847) 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, 49643 + ... + 57626.

Almost surely, 2^428217848 is an apocalyptic number.

It is an amenable number.

428217848 is a deficient number, since it is larger than the sum of its proper divisors (376307152).

428217848 is a wasteful number, since it uses less digits than its factorization.

428217848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107774 (or 107770 counting only the distinct ones).

The product of its digits is 229376, while the sum is 44.

The square root of 428217848 is about 20693.4252360502. The cubic root of 428217848 is about 753.7400431751.

The spelling of 428217848 in words is "four hundred twenty-eight million, two hundred seventeen thousand, eight hundred forty-eight".