40444400000 has 96 divisors (see below), whose sum is σ = 100710585360. Its totient is φ = 16177600000.

The previous prime is 40444399999. The next prime is 40444400033. The reversal of 40444400000 is 444404.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 349445 + ... + 450555.

Almost surely, 2^40444400000 is an apocalyptic number.

40444400000 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 40444400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50355292680).

40444400000 is an abundant number, since it is smaller than the sum of its proper divisors (60266185360).

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

40444400000 is an frugal number, since it uses more digits than its factorization.

40444400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101150 (or 101118 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40444400000 its reverse (444404), we get a palindrome (40444844404).

It can be divided in two parts, 4044 and 4400000, that added together give a palindrome (4404044).

The spelling of 40444400000 in words is "forty billion, four hundred forty-four million, four hundred thousand".