428787824 has 20 divisors (see below), whose sum is σ = 839005080. Its totient is φ = 212270400.

The previous prime is 428787811. The next prime is 428787851.

428787824 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131054 + ... + 134285.

It is an arithmetic number, because the mean of its divisors is an integer number (41950254).

Almost surely, 2^428787824 is an apocalyptic number.

It is an amenable number.

428787824 is a deficient number, since it is larger than the sum of its proper divisors (410217256).

428787824 is a wasteful number, since it uses less digits than its factorization.

428787824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265448 (or 265442 counting only the distinct ones).

The product of its digits is 1605632, while the sum is 50.

The square root of 428787824 is about 20707.1925668353. The cubic root of 428787824 is about 754.0743148286.

The spelling of 428787824 in words is "four hundred twenty-eight million, seven hundred eighty-seven thousand, eight hundred twenty-four".