1340404335 has 32 divisors (see below), whose sum is σ = 2384551680. Its totient is φ = 714399264.

The previous prime is 1340404333. The next prime is 1340404337. The reversal of 1340404335 is 5334040431.

It is an interprime number because it is at equal distance from previous prime (1340404333) and next prime (1340404337).

It is not a de Polignac number, because 1340404335 - 2¹ = 1340404333 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1340404299 and 1340404308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340404333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295152 + ... + 299658.

It is an arithmetic number, because the mean of its divisors is an integer number (74517240).

Almost surely, 2^1340404335 is an apocalyptic number.

1340404335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1340404335 is a deficient number, since it is larger than the sum of its proper divisors (1044147345).

1340404335 is a wasteful number, since it uses less digits than its factorization.

1340404335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724 (or 6718 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 1340404335 is about 36611.5328141284. The cubic root of 1340404335 is about 1102.5846480428.

Adding to 1340404335 its reverse (5334040431), we get a palindrome (6674444766).

The spelling of 1340404335 in words is "one billion, three hundred forty million, four hundred four thousand, three hundred thirty-five".