1040370409 has 4 divisors (see below), whose sum is σ = 1120398916. Its totient is φ = 960341904.

The previous prime is 1040370407. The next prime is 1040370413. The reversal of 1040370409 is 9040730401.

1040370409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 648211600 + 392158809 = 25460^2 + 19803^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040370409 - 2¹ = 1040370407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1040370407) 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, 40014234 + ... + 40014259.

It is an arithmetic number, because the mean of its divisors is an integer number (280099729).

Almost surely, 2^1040370409 is an apocalyptic number.

It is an amenable number.

1040370409 is a deficient number, since it is larger than the sum of its proper divisors (80028507).

1040370409 is an equidigital number, since it uses as much as digits as its factorization.

1040370409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80028506.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1040370409 is about 32254.7734296801. The cubic root of 1040370409 is about 1013.2796726716.

The spelling of 1040370409 in words is "one billion, forty million, three hundred seventy thousand, four hundred nine".