42440664442 has 8 divisors (see below), whose sum is σ = 69448360032. Its totient is φ = 19291211100.

The previous prime is 42440664403. The next prime is 42440664457. The reversal of 42440664442 is 24446604424.

It is a happy number.

42440664442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×42440664442³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42440664395 and 42440664404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964560534 + ... + 964560577.

It is an arithmetic number, because the mean of its divisors is an integer number (8681045004).

Almost surely, 2^42440664442 is an apocalyptic number.

42440664442 is a deficient number, since it is larger than the sum of its proper divisors (27007695590).

42440664442 is a wasteful number, since it uses less digits than its factorization.

42440664442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929121124.

The product of its (nonzero) digits is 589824, while the sum is 40.

The spelling of 42440664442 in words is "forty-two billion, four hundred forty million, six hundred sixty-four thousand, four hundred forty-two".