88444040000 has 140 divisors (see below), whose sum is σ = 221452037664. Its totient is φ = 35032512000.

The previous prime is 88444039997. The next prime is 88444040011. The reversal of 88444040000 is 4044488.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4109267 + ... + 4130733.

Almost surely, 2^88444040000 is an apocalyptic number.

88444040000 is a gapful number since it is divisible by the number (80) 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 88444040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110726018832).

88444040000 is an abundant number, since it is smaller than the sum of its proper divisors (133007997664).

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

88444040000 is a wasteful number, since it uses less digits than its factorization.

88444040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21602 (or 21577 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

Adding to 88444040000 its reverse (4044488), we get a palindrome (88448084488).

The spelling of 88444040000 in words is "eighty-eight billion, four hundred forty-four million, forty thousand".