4444442442040 has 16 divisors (see below), whose sum is σ = 9999995494680. Its totient is φ = 1777776976800.

The previous prime is 4444442441969. The next prime is 4444442442049. The reversal of 4444442442040 is 402442444444.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 111111061051 = 4444442442040 / (4 + 4 + 4 + 4 + 4 + 4 + 2 + 4 + 4 + 2 + 0 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 4444442441984 and 4444442442002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444442442049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55555530486 + ... + 55555530565.

Almost surely, 2^{4444442442040} is an apocalyptic number.

4444442442040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444442442040 is an abundant number, since it is smaller than the sum of its proper divisors (5555553052640).

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

4444442442040 is a wasteful number, since it uses less digits than its factorization.

4444442442040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111111061062 (or 111111061058 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 40.

Adding to 4444442442040 its reverse (402442444444), we get a palindrome (4846884886484).

The spelling of 4444442442040 in words is "four trillion, four hundred forty-four billion, four hundred forty-two million, four hundred forty-two thousand, forty".