19924049 has 8 divisors (see below), whose sum is σ = 20870592. Its totient is φ = 18984240.

The previous prime is 19924039. The next prime is 19924057. The reversal of 19924049 is 94042991.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 19924049 - 2¹² = 19919953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19924039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4979 + ... + 8039.

It is an arithmetic number, because the mean of its divisors is an integer number (2608824).

Almost surely, 2^19924049 is an apocalyptic number.

It is an amenable number.

19924049 is a deficient number, since it is larger than the sum of its proper divisors (946543).

19924049 is a wasteful number, since it uses less digits than its factorization.

19924049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 19924049 is about 4463.6362979078. The cubic root of 19924049 is about 271.0977212337.

It can be divided in two parts, 1992 and 4049, that multiplied together give a palindrome (8065608).

The spelling of 19924049 in words is "nineteen million, nine hundred twenty-four thousand, forty-nine".