19213422 has 8 divisors (see below), whose sum is σ = 38426856. Its totient is φ = 6404472.

The previous prime is 19213393. The next prime is 19213429. The reversal of 19213422 is 22431291.

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

19213422 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 19213392 and 19213401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19213429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601113 + ... + 1601124.

It is an arithmetic number, because the mean of its divisors is an integer number (4803357).

Almost surely, 2^19213422 is an apocalyptic number.

19213422 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.

19213422 is a wasteful number, since it uses less digits than its factorization.

19213422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202242.

The product of its digits is 864, while the sum is 24.

The square root of 19213422 is about 4383.3117616706. The cubic root of 19213422 is about 267.8355622283.

The spelling of 19213422 in words is "nineteen million, two hundred thirteen thousand, four hundred twenty-two".