1438466347 has 2 divisors, whose sum is σ = 1438466348. Its totient is φ = 1438466346.

The previous prime is 1438466297. The next prime is 1438466363. The reversal of 1438466347 is 7436648341.

It is a strong prime.

It is an emirp because it is prime and its reverse (7436648341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1438466347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1438466297 and 1438466306.

It is not a weakly prime, because it can be changed into another prime (1438466147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719233173 + 719233174.

It is an arithmetic number, because the mean of its divisors is an integer number (719233174).

Almost surely, 2^1438466347 is an apocalyptic number.

1438466347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438466347 is an equidigital number, since it uses as much as digits as its factorization.

1438466347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 46.

The square root of 1438466347 is about 37927.1188860952. The cubic root of 1438466347 is about 1128.8421970478.

The spelling of 1438466347 in words is "one billion, four hundred thirty-eight million, four hundred sixty-six thousand, three hundred forty-seven".