19442841 has 16 divisors (see below), whose sum is σ = 28366848. Its totient is φ = 11747600.

The previous prime is 19442831. The next prime is 19442867. The reversal of 19442841 is 14824491.

It is a cyclic number.

It is not a de Polignac number, because 19442841 - 2⁵ = 19442809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (19442831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13540 + ... + 14906.

It is an arithmetic number, because the mean of its divisors is an integer number (1772928).

Almost surely, 2^19442841 is an apocalyptic number.

19442841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19442841 is a deficient number, since it is larger than the sum of its proper divisors (8924007).

19442841 is a wasteful number, since it uses less digits than its factorization.

19442841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812.

The product of its digits is 9216, while the sum is 33.

The square root of 19442841 is about 4409.4037011823. The cubic root of 19442841 is about 268.8973825822.

The spelling of 19442841 in words is "nineteen million, four hundred forty-two thousand, eight hundred forty-one".