1344378847 has 6 divisors (see below), whose sum is σ = 1563869328. Its totient is φ = 1152324684.

The previous prime is 1344378799. The next prime is 1344378863. The reversal of 1344378847 is 7488734431.

It is a happy number.

It is not a de Polignac number, because 1344378847 - 2⁷ = 1344378719 is a prime.

It is a super-2 number, since 2×1344378847² = 3614708968522098818, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 27436303 = 1344378847 / (1 + 3 + 4 + 4 + 3 + 7 + 8 + 8 + 4 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 1344378847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344378047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13718103 + ... + 13718200.

It is an arithmetic number, because the mean of its divisors is an integer number (260644888).

Almost surely, 2^1344378847 is an apocalyptic number.

1344378847 is a deficient number, since it is larger than the sum of its proper divisors (219490481).

1344378847 is an equidigital number, since it uses as much as digits as its factorization.

1344378847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27436317 (or 27436310 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 49.

The square root of 1344378847 is about 36665.7721451492. The cubic root of 1344378847 is about 1103.6733522940.

The spelling of 1344378847 in words is "one billion, three hundred forty-four million, three hundred seventy-eight thousand, eight hundred forty-seven".