2001401 has 8 divisors (see below), whose sum is σ = 2069760. Its totient is φ = 1934208.

The previous prime is 2001397. The next prime is 2001407. The reversal of 2001401 is 1041002.

2001401 = T₉₃ + T₉₄ + ... + T₂₃₃.

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 2001401 - 2² = 2001397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4340 + ... + 4778.

It is an arithmetic number, because the mean of its divisors is an integer number (258720).

2^2001401 is an apocalyptic number.

It is an amenable number.

2001401 is a deficient number, since it is larger than the sum of its proper divisors (68359).

2001401 is an equidigital number, since it uses as much as digits as its factorization.

2001401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583.

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

The square root of 2001401 is about 1414.7088039593. The cubic root of 2001401 is about 126.0215172793.

Adding to 2001401 its reverse (1041002), we get a palindrome (3042403).

The spelling of 2001401 in words is "two million, one thousand, four hundred one".