19983049 has 4 divisors (see below), whose sum is σ = 20011264. Its totient is φ = 19954836.

The previous prime is 19983043. The next prime is 19983077. The reversal of 19983049 is 94038991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19983049 - 2¹⁷ = 19851977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19982996 and 19983014.

It is not an unprimeable number, because it can be changed into a prime (19983043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13017 + ... + 14470.

It is an arithmetic number, because the mean of its divisors is an integer number (5002816).

Almost surely, 2^19983049 is an apocalyptic number.

It is an amenable number.

19983049 is a deficient number, since it is larger than the sum of its proper divisors (28215).

19983049 is an equidigital number, since it uses as much as digits as its factorization.

19983049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28214.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 19983049 is about 4470.2403738502. The cubic root of 19983049 is about 271.3650531623.

The spelling of 19983049 in words is "nineteen million, nine hundred eighty-three thousand, forty-nine".