86185044 has 72 divisors (see below), whose sum is σ = 240082752. Its totient is φ = 25850880.

The previous prime is 86185039. The next prime is 86185051. The reversal of 86185044 is 44058168.

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

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, 39732 + ... + 41844.

Almost surely, 2^86185044 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 86185044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120041376).

86185044 is an abundant number, since it is smaller than the sum of its proper divisors (153897708).

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

86185044 is a wasteful number, since it uses less digits than its factorization.

86185044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237 (or 2232 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 86185044 is about 9283.5900383418. The cubic root of 86185044 is about 441.7168528392.

It can be divided in two parts, 861 and 85044, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 86185044 in words is "eighty-six million, one hundred eighty-five thousand, forty-four".