28890924422 has 8 divisors (see below), whose sum is σ = 43337107776. Its totient is φ = 14445221832.

The previous prime is 28890924407. The next prime is 28890924443. The reversal of 28890924422 is 22442909882.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×28890924422³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179243 + ... + 299849.

It is an arithmetic number, because the mean of its divisors is an integer number (5417138472).

Almost surely, 2^28890924422 is an apocalyptic number.

28890924422 is a deficient number, since it is larger than the sum of its proper divisors (14446183354).

28890924422 is a wasteful number, since it uses less digits than its factorization.

28890924422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240382.

The product of its (nonzero) digits is 1327104, while the sum is 50.

The spelling of 28890924422 in words is "twenty-eight billion, eight hundred ninety million, nine hundred twenty-four thousand, four hundred twenty-two".