86448440 has 32 divisors (see below), whose sum is σ = 209472480. Its totient is φ = 31919232.

The previous prime is 86448431. The next prime is 86448469. The reversal of 86448440 is 4484468.

It is a junction number, because it is equal to n+sod(n) for n = 86448394 and 86448403.

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, 82604 + ... + 83643.

It is an arithmetic number, because the mean of its divisors is an integer number (6546015).

Almost surely, 2^86448440 is an apocalyptic number.

It is an amenable number.

86448440 is an abundant number, since it is smaller than the sum of its proper divisors (123024040).

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

86448440 is a wasteful number, since it uses less digits than its factorization.

86448440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166271 (or 166267 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 38.

The square root of 86448440 is about 9297.7653229150. The cubic root of 86448440 is about 442.1663822193.

The spelling of 86448440 in words is "eighty-six million, four hundred forty-eight thousand, four hundred forty".