1404540041 has 4 divisors (see below), whose sum is σ = 1404811284. Its totient is φ = 1404268800.

The previous prime is 1404540023. The next prime is 1404540073. The reversal of 1404540041 is 1400454041.

It is a happy number.

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 236267641 + 1168272400 = 15371^2 + 34180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1404540041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1404539989 and 1404540016.

It is not an unprimeable number, because it can be changed into a prime (1404540341) 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, 127700 + ... + 138261.

It is an arithmetic number, because the mean of its divisors is an integer number (351202821).

Almost surely, 2^1404540041 is an apocalyptic number.

It is an amenable number.

1404540041 is a deficient number, since it is larger than the sum of its proper divisors (271243).

1404540041 is an equidigital number, since it uses as much as digits as its factorization.

1404540041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271242.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1404540041 is about 37477.1936115820. The cubic root of 1404540041 is about 1119.8968976626.

Adding to 1404540041 its reverse (1400454041), we get a palindrome (2804994082).

The spelling of 1404540041 in words is "one billion, four hundred four million, five hundred forty thousand, forty-one".