28490028226 has 16 divisors (see below), whose sum is σ = 46623348288. Its totient is φ = 12949095600.

The previous prime is 28490028199. The next prime is 28490028241. The reversal of 28490028226 is 62282009482.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346336 + ... + 420628.

It is an arithmetic number, because the mean of its divisors is an integer number (2913959268).

Almost surely, 2^28490028226 is an apocalyptic number.

28490028226 is a deficient number, since it is larger than the sum of its proper divisors (18133320062).

28490028226 is a wasteful number, since it uses less digits than its factorization.

28490028226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91737.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 28490028226 in words is "twenty-eight billion, four hundred ninety million, twenty-eight thousand, two hundred twenty-six".