20423241 has 12 divisors (see below), whose sum is σ = 30783168. Its totient is φ = 13023384.

The previous prime is 20423231. The next prime is 20423257. The reversal of 20423241 is 14232402.

20423241 is a `hidden beast` number, since 2 + 0 + 423 + 241 = 666.

It is not a de Polignac number, because 20423241 - 2⁵ = 20423209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20423201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49125 + ... + 49538.

It is an arithmetic number, because the mean of its divisors is an integer number (2565264).

Almost surely, 2^20423241 is an apocalyptic number.

It is an amenable number.

20423241 is a deficient number, since it is larger than the sum of its proper divisors (10359927).

20423241 is a wasteful number, since it uses less digits than its factorization.

20423241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98692 (or 98689 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20423241 is about 4519.2080058347. The cubic root of 20423241 is about 273.3431662468.

Adding to 20423241 its reverse (14232402), we get a palindrome (34655643).

The spelling of 20423241 in words is "twenty million, four hundred twenty-three thousand, two hundred forty-one".