86236140 has 72 divisors (see below), whose sum is σ = 250220880. Its totient is φ = 22190336.

The previous prime is 86236099. The next prime is 86236147. The reversal of 86236140 is 4163268.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 86236098 and 86236107.

It is not an unprimeable number, because it can be changed into a prime (86236147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49606 + ... + 51314.

It is an arithmetic number, because the mean of its divisors is an integer number (3475290).

Almost surely, 2^86236140 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 86236140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125110440).

86236140 is an abundant number, since it is smaller than the sum of its proper divisors (163984740).

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

86236140 is a wasteful number, since it uses less digits than its factorization.

86236140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779 (or 1748 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 86236140 is about 9286.3415832070. The cubic root of 86236140 is about 441.8041282504.

The spelling of 86236140 in words is "eighty-six million, two hundred thirty-six thousand, one hundred forty".