400235366474 has 16 divisors (see below), whose sum is σ = 605921524488. Its totient is φ = 198263020032.

The previous prime is 400235366449. The next prime is 400235366477. The reversal of 400235366474 is 474663532004.

It can be written as a sum of positive squares in 4 ways, for example, as 146224406449 + 254010960025 = 382393^2 + 503995^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400235366477) 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, 164684 + ... + 909720.

Almost surely, 2^400235366474 is an apocalyptic number.

400235366474 is a deficient number, since it is larger than the sum of its proper divisors (205686158014).

400235366474 is a wasteful number, since it uses less digits than its factorization.

400235366474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747529.

The product of its (nonzero) digits is 1451520, while the sum is 44.

Adding to 400235366474 its reverse (474663532004), we get a palindrome (874898898478).

The spelling of 400235366474 in words is "four hundred billion, two hundred thirty-five million, three hundred sixty-six thousand, four hundred seventy-four".