19444413 has 16 divisors (see below), whose sum is σ = 28399680. Its totient is φ = 11778816.

The previous prime is 19444393. The next prime is 19444423. The reversal of 19444413 is 31444491.

It is not a de Polignac number, because 19444413 - 2¹⁴ = 19428029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19444423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5095 + ... + 8052.

It is an arithmetic number, because the mean of its divisors is an integer number (1774980).

Almost surely, 2^19444413 is an apocalyptic number.

It is an amenable number.

19444413 is a deficient number, since it is larger than the sum of its proper divisors (8955267).

19444413 is a wasteful number, since it uses less digits than its factorization.

19444413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13196.

The product of its digits is 6912, while the sum is 30.

The square root of 19444413 is about 4409.5819529747. The cubic root of 19444413 is about 268.9046293849.

The spelling of 19444413 in words is "nineteen million, four hundred forty-four thousand, four hundred thirteen".