400043336674 has 4 divisors (see below), whose sum is σ = 600065005014. Its totient is φ = 200021668336.

The previous prime is 400043336663. The next prime is 400043336681. The reversal of 400043336674 is 476633340004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 347796806049 + 52246530625 = 589743^2 + 228575^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 100010834167 + ... + 100010834170.

Almost surely, 2^400043336674 is an apocalyptic number.

400043336674 is a deficient number, since it is larger than the sum of its proper divisors (200021668340).

400043336674 is a wasteful number, since it uses less digits than its factorization.

400043336674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200021668339.

The product of its (nonzero) digits is 435456, while the sum is 40.

Adding to 400043336674 its reverse (476633340004), we get a palindrome (876676676678).

The spelling of 400043336674 in words is "four hundred billion, forty-three million, three hundred thirty-six thousand, six hundred seventy-four".