1040442671 has 4 divisors (see below), whose sum is σ = 1043341200. Its totient is φ = 1037544144.

The previous prime is 1040442631. The next prime is 1040442709. The reversal of 1040442671 is 1762440401.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040442671 is a prime.

It is a super-2 number, since 2×1040442671² = 2165041903275228482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040442631) 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 in 3 ways as a sum of consecutive naturals, for example, 1448726 + ... + 1449443.

It is an arithmetic number, because the mean of its divisors is an integer number (260835300).

Almost surely, 2^1040442671 is an apocalyptic number.

1040442671 is a deficient number, since it is larger than the sum of its proper divisors (2898529).

1040442671 is an equidigital number, since it uses as much as digits as its factorization.

1040442671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898528.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 1040442671 is about 32255.8935855140. The cubic root of 1040442671 is about 1013.3031322394.

The spelling of 1040442671 in words is "one billion, forty million, four hundred forty-two thousand, six hundred seventy-one".