28020009422 has 16 divisors (see below), whose sum is σ = 44398469760. Its totient is φ = 13225731192.

The previous prime is 28020009373. The next prime is 28020009431. The reversal of 28020009422 is 22490002082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292018 + ... + 1313525.

It is an arithmetic number, because the mean of its divisors is an integer number (2774904360).

Almost surely, 2^28020009422 is an apocalyptic number.

28020009422 is a deficient number, since it is larger than the sum of its proper divisors (16378460338).

28020009422 is a wasteful number, since it uses less digits than its factorization.

28020009422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605847.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 28020009422 in words is "twenty-eight billion, twenty million, nine thousand, four hundred twenty-two".