400240411 has 8 divisors (see below), whose sum is σ = 431115264. Its totient is φ = 370488360.

The previous prime is 400240381. The next prime is 400240417. The reversal of 400240411 is 114042004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400240411 - 2⁹ = 400239899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400240417) 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 7 ways as a sum of consecutive naturals, for example, 279961 + ... + 281386.

It is an arithmetic number, because the mean of its divisors is an integer number (53889408).

Almost surely, 2^400240411 is an apocalyptic number.

400240411 is a deficient number, since it is larger than the sum of its proper divisors (30874853).

400240411 is a wasteful number, since it uses less digits than its factorization.

400240411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561401.

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

The square root of 400240411 is about 20006.0093721861. The cubic root of 400240411 is about 736.9538837808.

Adding to 400240411 its reverse (114042004), we get a palindrome (514282415).

The spelling of 400240411 in words is "four hundred million, two hundred forty thousand, four hundred eleven".