1040035138 has 4 divisors (see below), whose sum is σ = 1560052710. Its totient is φ = 520017568.

The previous prime is 1040035133. The next prime is 1040035141. The reversal of 1040035138 is 8315300401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 923977609 + 116057529 = 30397^2 + 10773^2 .

It is not an unprimeable number, because it can be changed into a prime (1040035133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260008783 + ... + 260008786.

Almost surely, 2^1040035138 is an apocalyptic number.

1040035138 is a deficient number, since it is larger than the sum of its proper divisors (520017572).

1040035138 is an equidigital number, since it uses as much as digits as its factorization.

1040035138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520017571.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1040035138 is about 32249.5757801556. The cubic root of 1040035138 is about 1013.1708140747.

Adding to 1040035138 its reverse (8315300401), we get a palindrome (9355335539).

The spelling of 1040035138 in words is "one billion, forty million, thirty-five thousand, one hundred thirty-eight".