400005366674 has 16 divisors (see below), whose sum is σ = 625228637400. Its totient is φ = 191696502144.

The previous prime is 400005366637. The next prime is 400005366679. The reversal of 400005366674 is 476663500004.

It can be written as a sum of positive squares in 4 ways, for example, as 398975406025 + 1029960649 = 631645^2 + 32093^2 .

It is not an unprimeable number, because it can be changed into a prime (400005366679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25162289 + ... + 25178180.

Almost surely, 2^400005366674 is an apocalyptic number.

400005366674 is a deficient number, since it is larger than the sum of its proper divisors (225223270726).

400005366674 is a wasteful number, since it uses less digits than its factorization.

400005366674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50340637.

The product of its (nonzero) digits is 362880, while the sum is 41.

Adding to 400005366674 its reverse (476663500004), we get a palindrome (876668866678).

The spelling of 400005366674 in words is "four hundred billion, five million, three hundred sixty-six thousand, six hundred seventy-four".