88543840 has 96 divisors (see below), whose sum is σ = 260838144. Its totient is φ = 27594240.

The previous prime is 88543811. The next prime is 88543853. The reversal of 88543840 is 4834588.

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 = 88543793 and 88543802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8727 + ... + 15913.

It is an arithmetic number, because the mean of its divisors is an integer number (2717064).

Almost surely, 2^88543840 is an apocalyptic number.

88543840 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 88543840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130419072).

88543840 is an abundant number, since it is smaller than the sum of its proper divisors (172294304).

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

88543840 is a wasteful number, since it uses less digits than its factorization.

88543840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7220 (or 7212 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 88543840 is about 9409.7736423359. The cubic root of 88543840 is about 445.7104168288.

The spelling of 88543840 in words is "eighty-eight million, five hundred forty-three thousand, eight hundred forty".