20841801 has 8 divisors (see below), whose sum is σ = 27834240. Its totient is φ = 13871952.

The previous prime is 20841787. The next prime is 20841823. The reversal of 20841801 is 10814802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20841801 - 2¹³ = 20833609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20841871) 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 7 ways as a sum of consecutive naturals, for example, 3361 + ... + 7278.

It is an arithmetic number, because the mean of its divisors is an integer number (3479280).

Almost surely, 2^20841801 is an apocalyptic number.

It is an amenable number.

20841801 is a deficient number, since it is larger than the sum of its proper divisors (6992439).

20841801 is a wasteful number, since it uses less digits than its factorization.

20841801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11295.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 20841801 is about 4565.2821380502. The cubic root of 20841801 is about 275.1978785174.

The spelling of 20841801 in words is "twenty million, eight hundred forty-one thousand, eight hundred one".