10228557920 has 144 divisors (see below), whose sum is σ = 28764944208. Its totient is φ = 3425264640.

The previous prime is 10228557919. The next prime is 10228557967. The reversal of 10228557920 is 2975582201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321950 + ... + 352290.

It is an arithmetic number, because the mean of its divisors is an integer number (199756557).

Almost surely, 2^10228557920 is an apocalyptic number.

10228557920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10228557920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14382472104).

10228557920 is an abundant number, since it is smaller than the sum of its proper divisors (18536386288).

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

10228557920 is a wasteful number, since it uses less digits than its factorization.

10228557920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30413 (or 30398 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 10228557920 in words is "ten billion, two hundred twenty-eight million, five hundred fifty-seven thousand, nine hundred twenty".