19225842 has 8 divisors (see below), whose sum is σ = 38451696. Its totient is φ = 6408612.

The previous prime is 19225841. The next prime is 19225849. The reversal of 19225842 is 24852291.

It is a sphenic number, since it is the product of 3 distinct primes.

19225842 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (19225841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1602148 + ... + 1602159.

It is an arithmetic number, because the mean of its divisors is an integer number (4806462).

Almost surely, 2^19225842 is an apocalyptic number.

19225842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19225842 is a wasteful number, since it uses less digits than its factorization.

19225842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3204312.

The product of its digits is 11520, while the sum is 33.

The square root of 19225842 is about 4384.7282698019. The cubic root of 19225842 is about 267.8932614964.

The spelling of 19225842 in words is "nineteen million, two hundred twenty-five thousand, eight hundred forty-two".