1404441001 has 4 divisors (see below), whose sum is σ = 1405686100. Its totient is φ = 1403195904.

The previous prime is 1404440951. The next prime is 1404441037. The reversal of 1404441001 is 1001444041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 641355625 + 763085376 = 25325^2 + 27624^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404441001 - 2⁹ = 1404440489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1404441001.

It is not an unprimeable number, because it can be changed into a prime (1404441061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620856 + ... + 623113.

It is an arithmetic number, because the mean of its divisors is an integer number (351421525).

Almost surely, 2^1404441001 is an apocalyptic number.

It is an amenable number.

1404441001 is a deficient number, since it is larger than the sum of its proper divisors (1245099).

1404441001 is a wasteful number, since it uses less digits than its factorization.

1404441001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245098.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1404441001 is about 37475.8722513566. The cubic root of 1404441001 is about 1119.8705741706.

Adding to 1404441001 its reverse (1001444041), we get a palindrome (2405885042).

The spelling of 1404441001 in words is "one billion, four hundred four million, four hundred forty-one thousand, one".