428757543 has 40 divisors (see below), whose sum is σ = 660805200. Its totient is φ = 276918912.

The previous prime is 428757533. The next prime is 428757577. The reversal of 428757543 is 345757824.

It is a de Polignac number, because none of the positive numbers 2^k-428757543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428757523) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 348253 + ... + 349481.

It is an arithmetic number, because the mean of its divisors is an integer number (16520130).

Almost surely, 2^428757543 is an apocalyptic number.

428757543 is a deficient number, since it is larger than the sum of its proper divisors (232047657).

428757543 is a wasteful number, since it uses less digits than its factorization.

428757543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1364 counting only the distinct ones).

The product of its digits is 940800, while the sum is 45.

The square root of 428757543 is about 20706.4613828631. The cubic root of 428757543 is about 754.0565634991.

The spelling of 428757543 in words is "four hundred twenty-eight million, seven hundred fifty-seven thousand, five hundred forty-three".