1401442401 has 4 divisors (see below), whose sum is σ = 1868589872. Its totient is φ = 934294932.

The previous prime is 1401442351. The next prime is 1401442403. The reversal of 1401442401 is 1042441041.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1042441041 = 3 ⋅347480347.

It is not a de Polignac number, because 1401442401 - 2¹¹ = 1401440353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401442403) 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, 233573731 + ... + 233573736.

It is an arithmetic number, because the mean of its divisors is an integer number (467147468).

Almost surely, 2^1401442401 is an apocalyptic number.

It is an amenable number.

1401442401 is a deficient number, since it is larger than the sum of its proper divisors (467147471).

1401442401 is an equidigital number, since it uses as much as digits as its factorization.

1401442401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467147470.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1401442401 is about 37435.8437997596. The cubic root of 1401442401 is about 1119.0730002266.

Adding to 1401442401 its reverse (1042441041), we get a palindrome (2443883442).

The spelling of 1401442401 in words is "one billion, four hundred one million, four hundred forty-two thousand, four hundred one".