19794222 has 48 divisors (see below), whose sum is σ = 51903072. Its totient is φ = 5322240.

The previous prime is 19794221. The next prime is 19794241. The reversal of 19794222 is 22249791.

It is a super-2 number, since 2×19794222² = 783622449170568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19794221) 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, 2479 + ... + 6762.

It is an arithmetic number, because the mean of its divisors is an integer number (1081314).

Almost surely, 2^19794222 is an apocalyptic number.

19794222 is an abundant number, since it is smaller than the sum of its proper divisors (32108850).

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

19794222 is a wasteful number, since it uses less digits than its factorization.

19794222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9273 (or 9270 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 19794222 is about 4449.0697904169. The cubic root of 19794222 is about 270.5076047668.

The spelling of 19794222 in words is "nineteen million, seven hundred ninety-four thousand, two hundred twenty-two".