18920941 has 8 divisors (see below), whose sum is σ = 21449120. Its totient is φ = 16546032.

The previous prime is 18920939. The next prime is 18920959. The reversal of 18920941 is 14902981.

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 18920941 - 2¹ = 18920939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18920897 and 18920906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18920921) 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 7 ways as a sum of consecutive naturals, for example, 38055 + ... + 38548.

It is an arithmetic number, because the mean of its divisors is an integer number (2681140).

Almost surely, 2^18920941 is an apocalyptic number.

It is an amenable number.

18920941 is a deficient number, since it is larger than the sum of its proper divisors (2528179).

18920941 is a wasteful number, since it uses less digits than its factorization.

18920941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76635.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 18920941 is about 4349.8208009066. The cubic root of 18920941 is about 266.4695430347.

The spelling of 18920941 in words is "eighteen million, nine hundred twenty thousand, nine hundred forty-one".