1343356778 has 8 divisors (see below), whose sum is σ = 2043416160. Its totient is φ = 662218060.

The previous prime is 1343356771. The next prime is 1343356811. The reversal of 1343356778 is 8776533431.

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

It is not an unprimeable number, because it can be changed into a prime (1343356771) 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, 4729988 + ... + 4730271.

It is an arithmetic number, because the mean of its divisors is an integer number (255427020).

Almost surely, 2^1343356778 is an apocalyptic number.

1343356778 is a deficient number, since it is larger than the sum of its proper divisors (700059382).

1343356778 is an equidigital number, since it uses as much as digits as its factorization.

1343356778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9460332.

The product of its digits is 1270080, while the sum is 47.

The square root of 1343356778 is about 36651.8318505365. The cubic root of 1343356778 is about 1103.3935908002.

The spelling of 1343356778 in words is "one billion, three hundred forty-three million, three hundred fifty-six thousand, seven hundred seventy-eight".