19922272 has 12 divisors (see below), whose sum is σ = 39222036. Its totient is φ = 9961120.

The previous prime is 19922237. The next prime is 19922281. The reversal of 19922272 is 27222991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311254 + ... + 311317.

It is an arithmetic number, because the mean of its divisors is an integer number (3268503).

Almost surely, 2^19922272 is an apocalyptic number.

It is an amenable number.

19922272 is a deficient number, since it is larger than the sum of its proper divisors (19299764).

19922272 is an equidigital number, since it uses as much as digits as its factorization.

19922272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622581 (or 622573 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 19922272 is about 4463.4372405132. The cubic root of 19922272 is about 271.0896613764.

The spelling of 19922272 in words is "nineteen million, nine hundred twenty-two thousand, two hundred seventy-two".