22728748350 has 384 divisors, whose sum is σ = 74484375552. Its totient is φ = 4446604800.

The previous prime is 22728748337. The next prime is 22728748369. The reversal of 22728748350 is 5384782722.

It is a self number, because there is not a number n which added to its sum of digits gives 22728748350.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 17797912 + ... + 17799188.

It is an arithmetic number, because the mean of its divisors is an integer number (193969728).

Almost surely, 2^22728748350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22728748350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37242187776).

22728748350 is an abundant number, since it is smaller than the sum of its proper divisors (51755627202).

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

22728748350 is a wasteful number, since it uses less digits than its factorization.

22728748350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400 (or 1395 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 22728748350 in words is "twenty-two billion, seven hundred twenty-eight million, seven hundred forty-eight thousand, three hundred fifty".