1438095949 has 2 divisors, whose sum is σ = 1438095950. Its totient is φ = 1438095948.

The previous prime is 1438095947. The next prime is 1438096001. The reversal of 1438095949 is 9495908341.

It is an a-pointer prime, because the next prime (1438096001) can be obtained adding 1438095949 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1062434025 + 375661924 = 32595^2 + 19382^2 .

It is a cyclic number.

It is not a de Polignac number, because 1438095949 - 2¹ = 1438095947 is a prime.

Together with 1438095947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1438095896 and 1438095905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1438095941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719047974 + 719047975.

It is an arithmetic number, because the mean of its divisors is an integer number (719047975).

Almost surely, 2^1438095949 is an apocalyptic number.

It is an amenable number.

1438095949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438095949 is an equidigital number, since it uses as much as digits as its factorization.

1438095949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 1438095949 is about 37922.2355485538. The cubic root of 1438095949 is about 1128.7452982949.

The spelling of 1438095949 in words is "one billion, four hundred thirty-eight million, ninety-five thousand, nine hundred forty-nine".