88140384 has 72 divisors (see below), whose sum is σ = 251570592. Its totient is φ = 29272320.

The previous prime is 88140383. The next prime is 88140491. The reversal of 88140384 is 48304188.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88140383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133014 + ... + 133674.

It is an arithmetic number, because the mean of its divisors is an integer number (3494036).

Almost surely, 2^88140384 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 88140384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125785296).

88140384 is an abundant number, since it is smaller than the sum of its proper divisors (163430208).

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

88140384 is a wasteful number, since it uses less digits than its factorization.

88140384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 88140384 is about 9388.3110302120. The cubic root of 88140384 is about 445.0324161043.

The spelling of 88140384 in words is "eighty-eight million, one hundred forty thousand, three hundred eighty-four".