1340404222 has 8 divisors (see below), whose sum is σ = 2018252016. Its totient is φ = 667653552.

The previous prime is 1340404207. The next prime is 1340404237. The reversal of 1340404222 is 2224040431.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1340404207) and next prime (1340404237).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1340404193 and 1340404202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273623 + ... + 1274674.

It is an arithmetic number, because the mean of its divisors is an integer number (252281502).

Almost surely, 2^1340404222 is an apocalyptic number.

1340404222 is a deficient number, since it is larger than the sum of its proper divisors (677847794).

1340404222 is a wasteful number, since it uses less digits than its factorization.

1340404222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548562.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1340404222 is about 36611.5312708988. The cubic root of 1340404222 is about 1102.5846170591.

Adding to 1340404222 its reverse (2224040431), we get a palindrome (3564444653).

The spelling of 1340404222 in words is "one billion, three hundred forty million, four hundred four thousand, two hundred twenty-two".