88440044440 has 128 divisors (see below), whose sum is σ = 218641420800. Its totient is φ = 31929569280.

The previous prime is 88440044437. The next prime is 88440044471. The reversal of 88440044440 is 4444004488.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 88440044393 and 88440044402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43846312 + ... + 43848328.

It is an arithmetic number, because the mean of its divisors is an integer number (1708136100).

Almost surely, 2^88440044440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 88440044440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109320710400).

88440044440 is an abundant number, since it is smaller than the sum of its proper divisors (130201376360).

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

88440044440 is a wasteful number, since it uses less digits than its factorization.

88440044440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705 (or 2701 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 40.

The spelling of 88440044440 in words is "eighty-eight billion, four hundred forty million, forty-four thousand, four hundred forty".