19844202 has 32 divisors (see below), whose sum is σ = 48028032. Its totient is φ = 5336064.

The previous prime is 19844197. The next prime is 19844233. The reversal of 19844202 is 20244891.

It is a self number, because there is not a number n which added to its sum of digits gives 19844202.

It is an unprimeable number.

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, 13183 + ... + 14610.

It is an arithmetic number, because the mean of its divisors is an integer number (1500876).

Almost surely, 2^19844202 is an apocalyptic number.

19844202 is an abundant number, since it is smaller than the sum of its proper divisors (28183830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19844202 is a wasteful number, since it uses less digits than its factorization.

19844202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27822.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 19844202 is about 4454.6831537159. The cubic root of 19844202 is about 270.7350887738.

Subtracting 19844202 from its reverse (20244891), we obtain a square (400689 = 633²).

The spelling of 19844202 in words is "nineteen million, eight hundred forty-four thousand, two hundred two".