40004000044000 has 48 divisors (see below), whose sum is σ = 98289828117936. Its totient is φ = 16001600016000.

The previous prime is 40004000043983. The next prime is 40004000044003. The reversal of 40004000044000 is 44000040004.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40004000044003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5000496006 + ... + 5000504005.

It is an arithmetic number, because the mean of its divisors is an integer number (2047704752457).

Almost surely, 2^{40004000044000} is an apocalyptic number.

40004000044000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40004000044000 is an abundant number, since it is smaller than the sum of its proper divisors (58285828073936).

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

40004000044000 is a wasteful number, since it uses less digits than its factorization.

40004000044000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10001000036 (or 10001000018 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 40004000044000 its reverse (44000040004), we get a palindrome (40048000084004).

The spelling of 40004000044000 in words is "forty trillion, four billion, forty-four thousand", and thus it is an eban number.