20204401 has 8 divisors (see below), whose sum is σ = 23171904. Its totient is φ = 17257200.

The previous prime is 20204389. The next prime is 20204411. The reversal of 20204401 is 10440202.

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 20204401 - 2⁵ = 20204369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20204411) 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, 2875 + ... + 6976.

It is an arithmetic number, because the mean of its divisors is an integer number (2896488).

Almost surely, 2^20204401 is an apocalyptic number.

It is an amenable number.

20204401 is a deficient number, since it is larger than the sum of its proper divisors (2967503).

20204401 is an equidigital number, since it uses as much as digits as its factorization.

20204401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10151.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20204401 is about 4494.9305890080. The cubic root of 20204401 is about 272.3633453352.

Adding to 20204401 its reverse (10440202), we get a palindrome (30644603).

The spelling of 20204401 in words is "twenty million, two hundred four thousand, four hundred one".