19942224 has 40 divisors (see below), whose sum is σ = 54550080. Its totient is φ = 6256128.

The previous prime is 19942217. The next prime is 19942249. The reversal of 19942224 is 42224991.

It is a super-3 number, since 3×19942224³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11404 + ... + 13035.

It is an arithmetic number, because the mean of its divisors is an integer number (1363752).

Almost surely, 2^19942224 is an apocalyptic number.

It is an amenable number.

19942224 is an abundant number, since it is smaller than the sum of its proper divisors (34607856).

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

19942224 is a wasteful number, since it uses less digits than its factorization.

19942224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24467 (or 24461 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 19942224 is about 4465.6717299864. The cubic root of 19942224 is about 271.1801292426.

The spelling of 19942224 in words is "nineteen million, nine hundred forty-two thousand, two hundred twenty-four".