428285943 has 12 divisors (see below), whose sum is σ = 625014208. Its totient is φ = 282579840.

The previous prime is 428285927. The next prime is 428285969. The reversal of 428285943 is 349582824.

It is not a de Polignac number, because 428285943 - 2⁴ = 428285927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428285903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244423 + ... + 246168.

Almost surely, 2^428285943 is an apocalyptic number.

428285943 is a deficient number, since it is larger than the sum of its proper divisors (196728265).

428285943 is a wasteful number, since it uses less digits than its factorization.

428285943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490694 (or 490691 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 428285943 is about 20695.0705000007. The cubic root of 428285943 is about 753.7799941861.

The spelling of 428285943 in words is "four hundred twenty-eight million, two hundred eighty-five thousand, nine hundred forty-three".