1340004331 has 8 divisors (see below), whose sum is σ = 1346666400. Its totient is φ = 1333358208.

The previous prime is 1340004329. The next prime is 1340004349. The reversal of 1340004331 is 1334000431.

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 1340004331 - 2¹ = 1340004329 is a prime.

It is a super-2 number, since 2×1340004331² = 3591223214197515122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340004299 and 1340004308.

It is not an unprimeable number, because it can be changed into a prime (1340004931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186355 + ... + 193411.

It is an arithmetic number, because the mean of its divisors is an integer number (168333300).

Almost surely, 2^1340004331 is an apocalyptic number.

1340004331 is a deficient number, since it is larger than the sum of its proper divisors (6662069).

1340004331 is an equidigital number, since it uses as much as digits as its factorization.

1340004331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7973.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1340004331 is about 36606.0695923504. The cubic root of 1340004331 is about 1102.4749592131.

Adding to 1340004331 its reverse (1334000431), we get a palindrome (2674004762).

The spelling of 1340004331 in words is "one billion, three hundred forty million, four thousand, three hundred thirty-one".