4040040400000 has 384 divisors, whose sum is σ = 11084427426240. Its totient is φ = 1454400000000.

The previous prime is 4040040399991. The next prime is 4040040400031. The reversal of 4040040400000 is 40400404.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 444395455 + ... + 444404545.

Almost surely, 2^{4040040400000} is an apocalyptic number.

4040040400000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4040040400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5542213713120).

4040040400000 is an abundant number, since it is smaller than the sum of its proper divisors (7044387026240).

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

4040040400000 is an equidigital number, since it uses as much as digits as its factorization.

4040040400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9242 (or 9210 counting only the distinct ones).

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

Adding to 4040040400000 its reverse (40400404), we get a palindrome (4040080800404).

4040040400000 divided by its reverse (40400404) gives a 5-th power (100000 = 10⁵).

The spelling of 4040040400000 in words is "four trillion, forty billion, forty million, four hundred thousand".