1379344849 has 4 divisors (see below), whose sum is σ = 1381382964. Its totient is φ = 1377306736.

The previous prime is 1379344831. The next prime is 1379344853. The reversal of 1379344849 is 9484439731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 970011025 + 409333824 = 31145^2 + 20232^2 .

It is a cyclic number.

It is not a de Polignac number, because 1379344849 - 2⁵ = 1379344817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1379344796 and 1379344805.

It is not an unprimeable number, because it can be changed into a prime (1379344829) 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, 1018042 + ... + 1019395.

It is an arithmetic number, because the mean of its divisors is an integer number (345345741).

Almost surely, 2^1379344849 is an apocalyptic number.

It is an amenable number.

1379344849 is a deficient number, since it is larger than the sum of its proper divisors (2038115).

1379344849 is an equidigital number, since it uses as much as digits as its factorization.

1379344849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038114.

The product of its digits is 2612736, while the sum is 52.

The square root of 1379344849 is about 37139.5321591428. The cubic root of 1379344849 is about 1113.1600692417.

The spelling of 1379344849 in words is "one billion, three hundred seventy-nine million, three hundred forty-four thousand, eight hundred forty-nine".