1000400041 has 4 divisors (see below), whose sum is σ = 1024800084. Its totient is φ = 976000000.

The previous prime is 1000400021. The next prime is 1000400053. The reversal of 1000400041 is 1400040001.

1000400041 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 49294441 + 951105600 = 7021^2 + 30840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000400041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000400021) 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, 12199960 + ... + 12200041.

It is an arithmetic number, because the mean of its divisors is an integer number (256200021).

Almost surely, 2^1000400041 is an apocalyptic number.

It is an amenable number.

1000400041 is a deficient number, since it is larger than the sum of its proper divisors (24400043).

1000400041 is an equidigital number, since it uses as much as digits as its factorization.

1000400041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24400042.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1000400041 is about 31629.1011728124. The cubic root of 1000400041 is about 1000.1333292225.

Adding to 1000400041 its reverse (1400040001), we get a palindrome (2400440042).

The spelling of 1000400041 in words is "one billion, four hundred thousand, forty-one".