42440884444 has 48 divisors (see below), whose sum is σ = 86376693760. Its totient is φ = 17869325760.

The previous prime is 42440884441. The next prime is 42440884471. The reversal of 42440884444 is 44448804424.

It is a super-2 number, since 2×42440884444² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42440884394 and 42440884403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42440884441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1452709 + ... + 1481635.

Almost surely, 2^42440884444 is an apocalyptic number.

It is an amenable number.

42440884444 is an abundant number, since it is smaller than the sum of its proper divisors (43935809316).

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

42440884444 is a wasteful number, since it uses less digits than its factorization.

42440884444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29858 (or 29856 counting only the distinct ones).

The product of its (nonzero) digits is 2097152, while the sum is 46.

The spelling of 42440884444 in words is "forty-two billion, four hundred forty million, eight hundred eighty-four thousand, four hundred forty-four".