824785434 has 24 divisors (see below), whose sum is σ = 1949493312. Its totient is φ = 249934920.

The previous prime is 824785399. The next prime is 824785441. The reversal of 824785434 is 434587428.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 824785434.

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 11 ways as a sum of consecutive naturals, for example, 2082594 + ... + 2082989.

It is an arithmetic number, because the mean of its divisors is an integer number (81228888).

Almost surely, 2^824785434 is an apocalyptic number.

824785434 is an abundant number, since it is smaller than the sum of its proper divisors (1124707878).

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

824785434 is a wasteful number, since it uses less digits than its factorization.

824785434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4165602 (or 4165599 counting only the distinct ones).

The product of its digits is 860160, while the sum is 45.

The square root of 824785434 is about 28719.0778751686. The cubic root of 824785434 is about 937.8074119334.

The spelling of 824785434 in words is "eight hundred twenty-four million, seven hundred eighty-five thousand, four hundred thirty-four".