19225008 has 120 divisors (see below), whose sum is σ = 60063120. Its totient is φ = 5690880.

The previous prime is 19225001. The next prime is 19225009. The reversal of 19225008 is 80052291.

It is not an unprimeable number, because it can be changed into a prime (19225001) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 83838 + ... + 84066.

It is an arithmetic number, because the mean of its divisors is an integer number (500526).

Almost surely, 2^19225008 is an apocalyptic number.

19225008 is a gapful number since it is divisible by the number (18) 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 19225008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30031560).

19225008 is an abundant number, since it is smaller than the sum of its proper divisors (40838112).

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

19225008 is a wasteful number, since it uses less digits than its factorization.

19225008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 19225008 is about 4384.6331659558. The cubic root of 19225008 is about 267.8893877829.

Adding to 19225008 its reverse (80052291), we get a palindrome (99277299).

It can be divided in two parts, 192 and 25008, that added together give a triangular number (25200 = T₂₂₄).

The spelling of 19225008 in words is "nineteen million, two hundred twenty-five thousand, eight".