440021354026 has 4 divisors (see below), whose sum is σ = 660032031042. Its totient is φ = 220010677012.

The previous prime is 440021354011. The next prime is 440021354039. The reversal of 440021354026 is 620453120044.

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., 257303577001 + 182717777025 = 507251^2 + 427455^2 .

It is a Smith number, since the sum of its digits (31) 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 (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110005338505 + ... + 110005338508.

Almost surely, 2^440021354026 is an apocalyptic number.

440021354026 is a deficient number, since it is larger than the sum of its proper divisors (220010677016).

440021354026 is a wasteful number, since it uses less digits than its factorization.

440021354026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220010677015.

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 440021354026 in words is "four hundred forty billion, twenty-one million, three hundred fifty-four thousand, twenty-six".