86440080 has 40 divisors (see below), whose sum is σ = 267964992. Its totient is φ = 23050624.

The previous prime is 86440073. The next prime is 86440127. The reversal of 86440080 is 8004468.

It is a tau number, because it is divible by the number of its divisors (40).

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

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, 179844 + ... + 180323.

Almost surely, 2^86440080 is an apocalyptic number.

86440080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86440080 is an abundant number, since it is smaller than the sum of its proper divisors (181524912).

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

86440080 is a wasteful number, since it uses less digits than its factorization.

86440080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360183 (or 360177 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 86440080 is about 9297.3157416536. The cubic root of 86440080 is about 442.1521285203.

The spelling of 86440080 in words is "eighty-six million, four hundred forty thousand, eighty".