19228256 has 12 divisors (see below), whose sum is σ = 37855692. Its totient is φ = 9614112.

The previous prime is 19228249. The next prime is 19228259. The reversal of 19228256 is 65282291.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19228259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300410 + ... + 300473.

It is an arithmetic number, because the mean of its divisors is an integer number (3154641).

Almost surely, 2^19228256 is an apocalyptic number.

19228256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19228256 is a deficient number, since it is larger than the sum of its proper divisors (18627436).

19228256 is an equidigital number, since it uses as much as digits as its factorization.

19228256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600893 (or 600885 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 19228256 is about 4385.0035347762. The cubic root of 19228256 is about 267.9044732684.

The spelling of 19228256 in words is "nineteen million, two hundred twenty-eight thousand, two hundred fifty-six".