1038507649 has 2 divisors, whose sum is σ = 1038507650. Its totient is φ = 1038507648.

The previous prime is 1038507641. The next prime is 1038507689. The reversal of 1038507649 is 9467058301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 725925249 + 312582400 = 26943^2 + 17680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1038507649 - 2³ = 1038507641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1038507641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519253824 + 519253825.

It is an arithmetic number, because the mean of its divisors is an integer number (519253825).

Almost surely, 2^1038507649 is an apocalyptic number.

It is an amenable number.

1038507649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038507649 is an equidigital number, since it uses as much as digits as its factorization.

1038507649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 1038507649 is about 32225.8847667523. The cubic root of 1038507649 is about 1012.6745598337.

The spelling of 1038507649 in words is "one billion, thirty-eight million, five hundred seven thousand, six hundred forty-nine".