40042004044440 has 64 divisors (see below), whose sum is σ = 120126631080960. Its totient is φ = 10677812727680.

The previous prime is 40042004044433. The next prime is 40042004044517. The reversal of 40042004044440 is 4444040024004.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40042004044398 and 40042004044407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26012695 + ... + 27508985.

It is an arithmetic number, because the mean of its divisors is an integer number (1876978610640).

Almost surely, 2^{40042004044440} is an apocalyptic number.

40042004044440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40042004044440 is an abundant number, since it is smaller than the sum of its proper divisors (80084627036520).

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

40042004044440 is a wasteful number, since it uses less digits than its factorization.

40042004044440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719312 (or 1719308 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 40042004044440 its reverse (4444040024004), we get a palindrome (44486044068444).

The spelling of 40042004044440 in words is "forty trillion, forty-two billion, four million, forty-four thousand, four hundred forty".