824490642 has 16 divisors (see below), whose sum is σ = 1649348352. Its totient is φ = 274769040.

The previous prime is 824490613. The next prime is 824490661. The reversal of 824490642 is 246094428.

It is a self number, because there is not a number n which added to its sum of digits gives 824490642.

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 7 ways as a sum of consecutive naturals, for example, 20268 + ... + 45384.

It is an arithmetic number, because the mean of its divisors is an integer number (103084272).

Almost surely, 2^824490642 is an apocalyptic number.

824490642 is an abundant number, since it is smaller than the sum of its proper divisors (824857710).

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

824490642 is a wasteful number, since it uses less digits than its factorization.

824490642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30593.

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 824490642 is about 28713.9450790030. The cubic root of 824490642 is about 937.6956693094.

The spelling of 824490642 in words is "eight hundred twenty-four million, four hundred ninety thousand, six hundred forty-two".