40442444420 has 48 divisors (see below), whose sum is σ = 97073399808. Its totient is φ = 13864333440.

The previous prime is 40442444407. The next prime is 40442444431. The reversal of 40442444420 is 2444424404.

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, 2059850 + ... + 2079390.

It is an arithmetic number, because the mean of its divisors is an integer number (2022362496).

Almost surely, 2^40442444420 is an apocalyptic number.

It is an amenable number.

40442444420 is an abundant number, since it is smaller than the sum of its proper divisors (56630955388).

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

40442444420 is a wasteful number, since it uses less digits than its factorization.

40442444420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34340 (or 34338 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 40442444420 its reverse (2444424404), we get a palindrome (42886868824).

It can be divided in two parts, 404424 and 44420, that added together give a palindrome (448844).

The spelling of 40442444420 in words is "forty billion, four hundred forty-two million, four hundred forty-four thousand, four hundred twenty".