20481241 has 8 divisors (see below), whose sum is σ = 22561344. Its totient is φ = 18437520.

The previous prime is 20481217. The next prime is 20481257. The reversal of 20481241 is 14218402.

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 20481241 - 2¹⁹ = 19956953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20481211) 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, 7906 + ... + 10171.

It is an arithmetic number, because the mean of its divisors is an integer number (2820168).

Almost surely, 2^20481241 is an apocalyptic number.

It is an amenable number.

20481241 is a deficient number, since it is larger than the sum of its proper divisors (2080103).

20481241 is a wasteful number, since it uses less digits than its factorization.

20481241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 20481241 is about 4525.6205099412. The cubic root of 20481241 is about 273.6016776070.

Adding to 20481241 its reverse (14218402), we get a palindrome (34699643).

The spelling of 20481241 in words is "twenty million, four hundred eighty-one thousand, two hundred forty-one".