42820928402 has 24 divisors (see below), whose sum is σ = 77294643660. Its totient is φ = 17719003680.

The previous prime is 42820928389. The next prime is 42820928411. The reversal of 42820928402 is 20482902824.

It can be written as a sum of positive squares in 2 ways, for example, as 38616573121 + 4204355281 = 196511^2 + 64841^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42820928402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7530749 + ... + 7536432.

Almost surely, 2^42820928402 is an apocalyptic number.

42820928402 is a deficient number, since it is larger than the sum of its proper divisors (34473715258).

42820928402 is a wasteful number, since it uses less digits than its factorization.

42820928402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15067226 (or 15067219 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The spelling of 42820928402 in words is "forty-two billion, eight hundred twenty million, nine hundred twenty-eight thousand, four hundred two".