19616041 has 9 divisors (see below), whose sum is σ = 20279709. Its totient is φ = 18973836.

The previous prime is 19616029. The next prime is 19616063. The reversal of 19616041 is 14061691.

The square root of 19616041 is 4429.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 19616041 - 2⁷ = 19615913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19616021) 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 8 ways as a sum of consecutive naturals, for example, 190396 + ... + 190498.

It is an arithmetic number, because the mean of its divisors is an integer number (2253301).

Almost surely, 2^19616041 is an apocalyptic number.

19616041 is the 4429-th square number.

19616041 is the 2215-th centered octagonal number.

It is an amenable number.

19616041 is a deficient number, since it is larger than the sum of its proper divisors (663668).

19616041 is an frugal number, since it uses more digits than its factorization.

19616041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The cubic root of 19616041 is about 269.6934838938.

Multiplying 19616041 by its product of nonzero digits (1296), we get a square (25422389136 = 159444²).

The spelling of 19616041 in words is "nineteen million, six hundred sixteen thousand, forty-one".