1396550443 has 2 divisors, whose sum is σ = 1396550444. Its totient is φ = 1396550442.

The previous prime is 1396550437. The next prime is 1396550453. The reversal of 1396550443 is 3440556931.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1396550443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1396550396 and 1396550405.

It is not a weakly prime, because it can be changed into another prime (1396550453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698275221 + 698275222.

It is an arithmetic number, because the mean of its divisors is an integer number (698275222).

Almost surely, 2^1396550443 is an apocalyptic number.

1396550443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396550443 is an equidigital number, since it uses as much as digits as its factorization.

1396550443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 40.

The square root of 1396550443 is about 37370.4487931306. The cubic root of 1396550443 is about 1117.7693813464.

The spelling of 1396550443 in words is "one billion, three hundred ninety-six million, five hundred fifty thousand, four hundred forty-three".