20000401 has 8 divisors (see below), whose sum is σ = 20750400. Its totient is φ = 19254480.

The previous prime is 20000389. The next prime is 20000429. The reversal of 20000401 is 10400002.

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 20000401 - 2¹¹ = 19998353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000471) 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 7 ways as a sum of consecutive naturals, for example, 11946 + ... + 13516.

It is an arithmetic number, because the mean of its divisors is an integer number (2593800).

Almost surely, 2^20000401 is an apocalyptic number.

It is an amenable number.

20000401 is a deficient number, since it is larger than the sum of its proper divisors (749999).

20000401 is a wasteful number, since it uses less digits than its factorization.

20000401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 20000401 is about 4472.1807879378. The cubic root of 20000401 is about 271.4435757831.

Adding to 20000401 its reverse (10400002), we get a palindrome (30400403).

The spelling of 20000401 in words is "twenty million, four hundred one", and thus it is an aban number.