1040042401 has 4 divisors (see below), whose sum is σ = 1042876672. Its totient is φ = 1037208132.

The previous prime is 1040042327. The next prime is 1040042411. The reversal of 1040042401 is 1042400401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1040042401 - 2⁹ = 1040041889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040042411) 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 in 3 ways as a sum of consecutive naturals, for example, 1416585 + ... + 1417318.

It is an arithmetic number, because the mean of its divisors is an integer number (260719168).

Almost surely, 2^1040042401 is an apocalyptic number.

It is an amenable number.

1040042401 is a deficient number, since it is larger than the sum of its proper divisors (2834271).

1040042401 is an equidigital number, since it uses as much as digits as its factorization.

1040042401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834270.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1040042401 is about 32249.6883860914. The cubic root of 1040042401 is about 1013.1731725343.

Adding to 1040042401 its reverse (1042400401), we get a palindrome (2082442802).

The spelling of 1040042401 in words is "one billion, forty million, forty-two thousand, four hundred one".