20242401 has 4 divisors (see below), whose sum is σ = 26989872. Its totient is φ = 13494932.

The previous prime is 20242373. The next prime is 20242433. The reversal of 20242401 is 10424202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20242401 - 2⁷ = 20242273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20242451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3373731 + ... + 3373736.

It is an arithmetic number, because the mean of its divisors is an integer number (6747468).

Almost surely, 2^20242401 is an apocalyptic number.

It is an amenable number.

20242401 is a deficient number, since it is larger than the sum of its proper divisors (6747471).

20242401 is an equidigital number, since it uses as much as digits as its factorization.

20242401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6747470.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 20242401 is about 4499.1555874408. The cubic root of 20242401 is about 272.5339900928.

Adding to 20242401 its reverse (10424202), we get a palindrome (30666603).

The spelling of 20242401 in words is "twenty million, two hundred forty-two thousand, four hundred one".