40442420443 has 8 divisors (see below), whose sum is σ = 40608110288. Its totient is φ = 40276963584.

The previous prime is 40442420387. The next prime is 40442420483. The reversal of 40442420443 is 34402424404.

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

It is a cyclic number.

It is not a de Polignac number, because 40442420443 - 2²⁵ = 40408866011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40442420483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293971 + ... + 409027.

It is an arithmetic number, because the mean of its divisors is an integer number (5076013786).

Almost surely, 2^40442420443 is an apocalyptic number.

40442420443 is a deficient number, since it is larger than the sum of its proper divisors (165689845).

40442420443 is a wasteful number, since it uses less digits than its factorization.

40442420443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116493.

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 40442420443 its reverse (34402424404), we get a palindrome (74844844847).

The spelling of 40442420443 in words is "forty billion, four hundred forty-two million, four hundred twenty thousand, four hundred forty-three".