20350401 has 4 divisors (see below), whose sum is σ = 27133872. Its totient is φ = 13566932.

The previous prime is 20350399. The next prime is 20350417. The reversal of 20350401 is 10405302.

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 20350401 - 2¹ = 20350399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20350471) 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 3 ways as a sum of consecutive naturals, for example, 3391731 + ... + 3391736.

It is an arithmetic number, because the mean of its divisors is an integer number (6783468).

Almost surely, 2^20350401 is an apocalyptic number.

It is an amenable number.

20350401 is a deficient number, since it is larger than the sum of its proper divisors (6783471).

20350401 is an equidigital number, since it uses as much as digits as its factorization.

20350401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6783470.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20350401 is about 4511.1418731847. The cubic root of 20350401 is about 273.0178174044.

Adding to 20350401 its reverse (10405302), we get a palindrome (30755703).

The spelling of 20350401 in words is "twenty million, three hundred fifty thousand, four hundred one".