1038540949 has 2 divisors, whose sum is σ = 1038540950. Its totient is φ = 1038540948.

The previous prime is 1038540907. The next prime is 1038540959. The reversal of 1038540949 is 9490458301.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 751746724 + 286794225 = 27418^2 + 16935^2 .

It is a cyclic number.

It is not a de Polignac number, because 1038540949 - 2⁷ = 1038540821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1038540959) 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, 519270474 + 519270475.

It is an arithmetic number, because the mean of its divisors is an integer number (519270475).

Almost surely, 2^1038540949 is an apocalyptic number.

It is an amenable number.

1038540949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038540949 is an equidigital number, since it uses as much as digits as its factorization.

1038540949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 1038540949 is about 32226.4014280217. The cubic root of 1038540949 is about 1012.6853836033.

The spelling of 1038540949 in words is "one billion, thirty-eight million, five hundred forty thousand, nine hundred forty-nine".