1340332229 has 4 divisors (see below), whose sum is σ = 1368849984. Its totient is φ = 1311814476.

The previous prime is 1340332193. The next prime is 1340332247. The reversal of 1340332229 is 9222330431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1340332229 - 2²⁸ = 1071896773 is a prime.

It is a super-2 number, since 2×1340332229² = 3592980968192216882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340032229) 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, 14258807 + ... + 14258900.

It is an arithmetic number, because the mean of its divisors is an integer number (342212496).

Almost surely, 2^1340332229 is an apocalyptic number.

It is an amenable number.

1340332229 is a deficient number, since it is larger than the sum of its proper divisors (28517755).

1340332229 is an equidigital number, since it uses as much as digits as its factorization.

1340332229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28517754.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 1340332229 is about 36610.5480565369. The cubic root of 1340332229 is about 1102.5648767961.

The spelling of 1340332229 in words is "one billion, three hundred forty million, three hundred thirty-two thousand, two hundred twenty-nine".