19980353 has 8 divisors (see below), whose sum is σ = 20938176. Its totient is φ = 19030000.

The previous prime is 19980347. The next prime is 19980379. The reversal of 19980353 is 35308991.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19980353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19980053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4043 + ... + 7503.

It is an arithmetic number, because the mean of its divisors is an integer number (2617272).

Almost surely, 2^19980353 is an apocalyptic number.

It is an amenable number.

19980353 is a deficient number, since it is larger than the sum of its proper divisors (957823).

19980353 is a wasteful number, since it uses less digits than its factorization.

19980353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3735.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 19980353 is about 4469.9388138989. The cubic root of 19980353 is about 271.3528489338.

The spelling of 19980353 in words is "nineteen million, nine hundred eighty thousand, three hundred fifty-three".