400240234413 has 6 divisors (see below), whose sum is σ = 578124783054. Its totient is φ = 266826822936.

The previous prime is 400240234411. The next prime is 400240234441. The reversal of 400240234413 is 314432042004.

It is a happy number.

400240234413 is a `hidden beast` number, since 4 + 0 + 0 + 240 + 2 + 3 + 4 + 413 = 666.

It can be written as a sum of positive squares in only one way, i.e., 255230071209 + 145010163204 = 505203^2 + 380802^2 .

It is not a de Polignac number, because 400240234413 - 2¹ = 400240234411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400240234411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22235568570 + ... + 22235568587.

It is an arithmetic number, because the mean of its divisors is an integer number (96354130509).

Almost surely, 2^400240234413 is an apocalyptic number.

It is an amenable number.

400240234413 is a deficient number, since it is larger than the sum of its proper divisors (177884548641).

400240234413 is a wasteful number, since it uses less digits than its factorization.

400240234413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44471137163 (or 44471137160 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 400240234413 its reverse (314432042004), we get a palindrome (714672276417).

The spelling of 400240234413 in words is "four hundred billion, two hundred forty million, two hundred thirty-four thousand, four hundred thirteen".