19981352 has 16 divisors (see below), whose sum is σ = 37516500. Its totient is φ = 9976960.

The previous prime is 19981333. The next prime is 19981361. The reversal of 19981352 is 25318991.

It can be written as a sum of positive squares in 2 ways, for example, as 19589476 + 391876 = 4426^2 + 626^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7202 + ... + 9582.

Almost surely, 2^19981352 is an apocalyptic number.

It is an amenable number.

19981352 is a deficient number, since it is larger than the sum of its proper divisors (17535148).

19981352 is a wasteful number, since it uses less digits than its factorization.

19981352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436 (or 3432 counting only the distinct ones).

The product of its digits is 19440, while the sum is 38.

The square root of 19981352 is about 4470.0505589982. The cubic root of 19981352 is about 271.3573713260.

The spelling of 19981352 in words is "nineteen million, nine hundred eighty-one thousand, three hundred fifty-two".