1401044403 has 8 divisors (see below), whose sum is σ = 2037882816. Its totient is φ = 849117800.

The previous prime is 1401044389. The next prime is 1401044413. The reversal of 1401044403 is 3044401041.

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 1401044403 - 2⁸ = 1401044147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1401044403.

It is not an unprimeable number, because it can be changed into a prime (1401044413) 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, 21227913 + ... + 21227978.

It is an arithmetic number, because the mean of its divisors is an integer number (254735352).

Almost surely, 2^1401044403 is an apocalyptic number.

1401044403 is a deficient number, since it is larger than the sum of its proper divisors (636838413).

1401044403 is a wasteful number, since it uses less digits than its factorization.

1401044403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42455905.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1401044403 is about 37430.5276879715. The cubic root of 1401044403 is about 1118.9670543847.

Adding to 1401044403 its reverse (3044401041), we get a palindrome (4445445444).

The spelling of 1401044403 in words is "one billion, four hundred one million, forty-four thousand, four hundred three".