1374644443 has 2 divisors, whose sum is σ = 1374644444. Its totient is φ = 1374644442.

The previous prime is 1374644431. The next prime is 1374644503. The reversal of 1374644443 is 3444464731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1374644443 - 2⁹ = 1374643931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1374644396 and 1374644405.

It is not a weakly prime, because it can be changed into another prime (1374644143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687322221 + 687322222.

It is an arithmetic number, because the mean of its divisors is an integer number (687322222).

Almost surely, 2^1374644443 is an apocalyptic number.

1374644443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374644443 is an equidigital number, since it uses as much as digits as its factorization.

1374644443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 40.

The square root of 1374644443 is about 37076.1977958906. The cubic root of 1374644443 is about 1111.8941883321.

The spelling of 1374644443 in words is "one billion, three hundred seventy-four million, six hundred forty-four thousand, four hundred forty-three".