42444442422440 has 64 divisors (see below), whose sum is σ = 95575107513600. Its totient is φ = 16964428969728.

The previous prime is 42444442422409. The next prime is 42444442422449. The reversal of 42444442422440 is 4422424444424.

It is a junction number, because it is equal to n+sod(n) for n = 42444442422391 and 42444442422400.

It is not an unprimeable number, because it can be changed into a prime (42444442422449) 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, 266767631 + ... + 266926689.

It is an arithmetic number, because the mean of its divisors is an integer number (1493361054900).

Almost surely, 2^{42444442422440} is an apocalyptic number.

42444442422440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42444442422440 is an abundant number, since it is smaller than the sum of its proper divisors (53130665091160).

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

42444442422440 is a wasteful number, since it uses less digits than its factorization.

42444442422440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164274 (or 164270 counting only the distinct ones).

The product of its (nonzero) digits is 4194304, while the sum is 44.

Adding to 42444442422440 its reverse (4422424444424), we get a palindrome (46866866866864).

The spelling of 42444442422440 in words is "forty-two trillion, four hundred forty-four billion, four hundred forty-two million, four hundred twenty-two thousand, four hundred forty".