20641341 has 16 divisors (see below), whose sum is σ = 31539200. Its totient is φ = 11762928.

The previous prime is 20641339. The next prime is 20641343. The reversal of 20641341 is 14314602.

It is an interprime number because it is at equal distance from previous prime (20641339) and next prime (20641343).

It is not a de Polignac number, because 20641341 - 2¹ = 20641339 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20641343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8100 + ... + 10338.

It is an arithmetic number, because the mean of its divisors is an integer number (1971200).

Almost surely, 2^20641341 is an apocalyptic number.

20641341 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20641341 is a deficient number, since it is larger than the sum of its proper divisors (10897859).

20641341 is a wasteful number, since it uses less digits than its factorization.

20641341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20641341 is about 4543.2742598263. The cubic root of 20641341 is about 274.3127345420.

Adding to 20641341 its reverse (14314602), we get a palindrome (34955943).

The spelling of 20641341 in words is "twenty million, six hundred forty-one thousand, three hundred forty-one".