42444403040 has 48 divisors (see below), whose sum is σ = 107988361488. Its totient is φ = 15671778816.

The previous prime is 42444403039. The next prime is 42444403097. The reversal of 42444403040 is 4030444424.

It is a happy number.

It is a super-2 number, since 2×42444403040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42444402994 and 42444403012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10200902 + ... + 10205061.

It is an arithmetic number, because the mean of its divisors is an integer number (2249757531).

Almost surely, 2^42444403040 is an apocalyptic number.

42444403040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42444403040 is an abundant number, since it is smaller than the sum of its proper divisors (65543958448).

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

42444403040 is a wasteful number, since it uses less digits than its factorization.

42444403040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20405991 (or 20405983 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 42444403040 its reverse (4030444424), we get a palindrome (46474847464).

The spelling of 42444403040 in words is "forty-two billion, four hundred forty-four million, four hundred three thousand, forty".