44040400000 has 192 divisors, whose sum is σ = 114455799360. Its totient is φ = 16846720000.

The previous prime is 44040399967. The next prime is 44040400037. The reversal of 44040400000 is 404044.

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 23 ways as a sum of consecutive naturals, for example, 9197607 + ... + 9202393.

It is an arithmetic number, because the mean of its divisors is an integer number (596123955).

Almost surely, 2^44040400000 is an apocalyptic number.

44040400000 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 44040400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57227899680).

44040400000 is an abundant number, since it is smaller than the sum of its proper divisors (70415399360).

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

44040400000 is an frugal number, since it uses more digits than its factorization.

44040400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4849 (or 4817 counting only the distinct ones).

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

Adding to 44040400000 its reverse (404044), we get a palindrome (44040804044).

The spelling of 44040400000 in words is "forty-four billion, forty million, four hundred thousand".