1801401 has 8 divisors (see below), whose sum is σ = 2745024. Its totient is φ = 1029360.

The previous prime is 1801363. The next prime is 1801403. The reversal of 1801401 is 1041081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1801401 - 2⁷ = 1801273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1801403) 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, 42870 + ... + 42911.

It is an arithmetic number, because the mean of its divisors is an integer number (343128).

2^1801401 is an apocalyptic number.

It is an amenable number.

1801401 is a deficient number, since it is larger than the sum of its proper divisors (943623).

1801401 is an equidigital number, since it uses as much as digits as its factorization.

1801401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85791.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1801401 is about 1342.1628068159. The cubic root of 1801401 is about 121.6755915973.

Adding to 1801401 its reverse (1041081), we get a palindrome (2842482).

The spelling of 1801401 in words is "one million, eight hundred one thousand, four hundred one".