88861140 has 72 divisors (see below), whose sum is σ = 273998088. Its totient is φ = 23304960.

The previous prime is 88861127. The next prime is 88861169. The reversal of 88861140 is 4116888.

It can be written as a sum of positive squares in 4 ways, for example, as 11664 + 88849476 = 108^2 + 9426^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 88861095 and 88861104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6934 + ... + 15026.

It is an arithmetic number, because the mean of its divisors is an integer number (3805529).

Almost surely, 2^88861140 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 88861140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136999044).

88861140 is an abundant number, since it is smaller than the sum of its proper divisors (185136948).

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

88861140 is a wasteful number, since it uses less digits than its factorization.

88861140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8169 (or 8164 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 88861140 is about 9426.6186938902. The cubic root of 88861140 is about 446.2421885034.

The spelling of 88861140 in words is "eighty-eight million, eight hundred sixty-one thousand, one hundred forty".