1340404041 has 16 divisors (see below), whose sum is σ = 1891834560. Its totient is φ = 842721600.

The previous prime is 1340403989. The next prime is 1340404063. The reversal of 1340404041 is 1404040431.

It is not a de Polignac number, because 1340404041 - 2²² = 1336209737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1340403999 and 1340404017.

It is not an unprimeable number, because it can be changed into a prime (1341404041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175410 + ... + 182891.

It is an arithmetic number, because the mean of its divisors is an integer number (118239660).

Almost surely, 2^1340404041 is an apocalyptic number.

It is an amenable number.

1340404041 is a deficient number, since it is larger than the sum of its proper divisors (551430519).

1340404041 is a wasteful number, since it uses less digits than its factorization.

1340404041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358376.

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

The square root of 1340404041 is about 36611.5287989999. The cubic root of 1340404041 is about 1102.5845674303.

Adding to 1340404041 its reverse (1404040431), we get a palindrome (2744444472).

The spelling of 1340404041 in words is "one billion, three hundred forty million, four hundred four thousand, forty-one".