20426441 has 8 divisors (see below), whose sum is σ = 23379840. Its totient is φ = 17481888.

The previous prime is 20426429. The next prime is 20426443. The reversal of 20426441 is 14462402.

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 20426441 - 2¹⁰ = 20425417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20426443) 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, 3860 + ... + 7466.

It is an arithmetic number, because the mean of its divisors is an integer number (2922480).

Almost surely, 2^20426441 is an apocalyptic number.

It is an amenable number.

20426441 is a deficient number, since it is larger than the sum of its proper divisors (2953399).

20426441 is an equidigital number, since it uses as much as digits as its factorization.

20426441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 20426441 is about 4519.5620363040. The cubic root of 20426441 is about 273.3574416901.

Adding to 20426441 its reverse (14462402), we get a palindrome (34888843).

The spelling of 20426441 in words is "twenty million, four hundred twenty-six thousand, four hundred forty-one".