440142423140 has 48 divisors (see below), whose sum is σ = 1060074567552. Its totient is φ = 150372723456.

The previous prime is 440142423121. The next prime is 440142423191. The reversal of 440142423140 is 41324241044.

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 in 15 ways as a sum of consecutive naturals, for example, 5514929 + ... + 5594168.

It is an arithmetic number, because the mean of its divisors is an integer number (22084886824).

Almost surely, 2^440142423140 is an apocalyptic number.

It is an amenable number.

440142423140 is an abundant number, since it is smaller than the sum of its proper divisors (619932144412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440142423140 is a wasteful number, since it uses less digits than its factorization.

440142423140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11109396 (or 11109394 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 440142423140 its reverse (41324241044), we get a palindrome (481466664184).

The spelling of 440142423140 in words is "four hundred forty billion, one hundred forty-two million, four hundred twenty-three thousand, one hundred forty".