1040040413 has 4 divisors (see below), whose sum is σ = 1047020700. Its totient is φ = 1033060128.

The previous prime is 1040040401. The next prime is 1040040457. The reversal of 1040040413 is 3140400401.

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

It can be written as a sum of positive squares in 2 ways, for example, as 198866404 + 841174009 = 14102^2 + 29003^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040040413 - 2¹⁸ = 1039778269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040040391 and 1040040400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040040493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3489920 + ... + 3490217.

It is an arithmetic number, because the mean of its divisors is an integer number (261755175).

Almost surely, 2^1040040413 is an apocalyptic number.

It is an amenable number.

1040040413 is a deficient number, since it is larger than the sum of its proper divisors (6980287).

1040040413 is an equidigital number, since it uses as much as digits as its factorization.

1040040413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6980286.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1040040413 is about 32249.6575640735. The cubic root of 1040040413 is about 1013.1725269871.

Adding to 1040040413 its reverse (3140400401), we get a palindrome (4180440814).

The spelling of 1040040413 in words is "one billion, forty million, forty thousand, four hundred thirteen".