40002244244400 has 120 divisors (see below), whose sum is σ = 128141936676864. Its totient is φ = 10667147398400.

The previous prime is 40002244244383. The next prime is 40002244244441. The reversal of 40002244244400 is 444244220004.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193661977 + ... + 193868423.

Almost surely, 2^{40002244244400} is an apocalyptic number.

40002244244400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40002244244400 is an abundant number, since it is smaller than the sum of its proper divisors (88139692432464).

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

40002244244400 is a wasteful number, since it uses less digits than its factorization.

40002244244400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367939 (or 367928 counting only the distinct ones).

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

Adding to 40002244244400 its reverse (444244220004), we get a palindrome (40446488464404).

The spelling of 40002244244400 in words is "forty trillion, two billion, two hundred forty-four million, two hundred forty-four thousand, four hundred".