20342141 has 8 divisors (see below), whose sum is σ = 21463200. Its totient is φ = 19226160.

The previous prime is 20342131. The next prime is 20342167. The reversal of 20342141 is 14124302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20342141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9290 + ... + 11268.

It is an arithmetic number, because the mean of its divisors is an integer number (2682900).

Almost surely, 2^20342141 is an apocalyptic number.

It is an amenable number.

20342141 is a deficient number, since it is larger than the sum of its proper divisors (1121059).

20342141 is a wasteful number, since it uses less digits than its factorization.

20342141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20342141 is about 4510.2262692685. The cubic root of 20342141 is about 272.9808741135.

Adding to 20342141 its reverse (14124302), we get a palindrome (34466443).

The spelling of 20342141 in words is "twenty million, three hundred forty-two thousand, one hundred forty-one".