440644055642 has 8 divisors (see below), whose sum is σ = 755389809696. Its totient is φ = 188847452412.

The previous prime is 440644055641. The next prime is 440644055647. The reversal of 440644055642 is 246550446044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 440644055593 and 440644055602.

It is not an unprimeable number, because it can be changed into a prime (440644055641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15737287688 + ... + 15737287715.

It is an arithmetic number, because the mean of its divisors is an integer number (94423726212).

Almost surely, 2^440644055642 is an apocalyptic number.

440644055642 is a deficient number, since it is larger than the sum of its proper divisors (314745754054).

440644055642 is a wasteful number, since it uses less digits than its factorization.

440644055642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31474575412.

The product of its (nonzero) digits is 1843200, while the sum is 44.

The spelling of 440644055642 in words is "four hundred forty billion, six hundred forty-four million, fifty-five thousand, six hundred forty-two".