440142020302 has 4 divisors (see below), whose sum is σ = 660213030456. Its totient is φ = 220071010150.

The previous prime is 440142020299. The next prime is 440142020321. The reversal of 440142020302 is 203020241044.

It is a happy number.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110035505074 + ... + 110035505077.

It is an arithmetic number, because the mean of its divisors is an integer number (165053257614).

Almost surely, 2^440142020302 is an apocalyptic number.

440142020302 is a deficient number, since it is larger than the sum of its proper divisors (220071010154).

440142020302 is a wasteful number, since it uses less digits than its factorization.

440142020302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220071010153.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 440142020302 its reverse (203020241044), we get a palindrome (643162261346).

The spelling of 440142020302 in words is "four hundred forty billion, one hundred forty-two million, twenty thousand, three hundred two".