86532440 has 32 divisors (see below), whose sum is σ = 203165280. Its totient is φ = 33107712.

The previous prime is 86532437. The next prime is 86532451. The reversal of 86532440 is 4423568.

It is a junction number, because it is equal to n+sod(n) for n = 86532397 and 86532406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46109 + ... + 47948.

It is an arithmetic number, because the mean of its divisors is an integer number (6348915).

Almost surely, 2^86532440 is an apocalyptic number.

It is an amenable number.

86532440 is an abundant number, since it is smaller than the sum of its proper divisors (116632840).

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

86532440 is a wasteful number, since it uses less digits than its factorization.

86532440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94091 (or 94087 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 86532440 is about 9302.2814405929. The cubic root of 86532440 is about 442.3095502263.

The spelling of 86532440 in words is "eighty-six million, five hundred thirty-two thousand, four hundred forty".