1438383307 has 2 divisors, whose sum is σ = 1438383308. Its totient is φ = 1438383306.

The previous prime is 1438383301. The next prime is 1438383341. The reversal of 1438383307 is 7033838341.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1438383307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1438383307.

It is not a weakly prime, because it can be changed into another prime (1438383301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719191653 + 719191654.

It is an arithmetic number, because the mean of its divisors is an integer number (719191654).

Almost surely, 2^1438383307 is an apocalyptic number.

1438383307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438383307 is an equidigital number, since it uses as much as digits as its factorization.

1438383307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 1438383307 is about 37926.0241391053. The cubic root of 1438383307 is about 1128.8204746395.

The spelling of 1438383307 in words is "one billion, four hundred thirty-eight million, three hundred eighty-three thousand, three hundred seven".