20436141 has 8 divisors (see below), whose sum is σ = 29725344. Its totient is φ = 12385520.

The previous prime is 20436133. The next prime is 20436151. The reversal of 20436141 is 14163402.

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 20436141 - 2³ = 20436133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20436151) 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, 309606 + ... + 309671.

It is an arithmetic number, because the mean of its divisors is an integer number (3715668).

Almost surely, 2^20436141 is an apocalyptic number.

It is an amenable number.

20436141 is a deficient number, since it is larger than the sum of its proper divisors (9289203).

20436141 is a wasteful number, since it uses less digits than its factorization.

20436141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619291.

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

The square root of 20436141 is about 4520.6350217641. The cubic root of 20436141 is about 273.4007050201.

Adding to 20436141 its reverse (14163402), we get a palindrome (34599543).

It can be divided in two parts, 204361 and 41, that added together give a palindrome (204402).

The spelling of 20436141 in words is "twenty million, four hundred thirty-six thousand, one hundred forty-one".