19228950 has 144 divisors (see below), whose sum is σ = 58902480. Its totient is φ = 4458240.

The previous prime is 19228949. The next prime is 19228981. The reversal of 19228950 is 5982291.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 111064 + ... + 111236.

It is an arithmetic number, because the mean of its divisors is an integer number (409045).

Almost surely, 2^19228950 is an apocalyptic number.

19228950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19228950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29451240).

19228950 is an abundant number, since it is smaller than the sum of its proper divisors (39673530).

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

19228950 is a wasteful number, since it uses less digits than its factorization.

19228950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 19228950 is about 4385.0826674078. The cubic root of 19228950 is about 267.9076963630.

The spelling of 19228950 in words is "nineteen million, two hundred twenty-eight thousand, nine hundred fifty".