84408880 has 40 divisors (see below), whose sum is σ = 196643664. Its totient is φ = 33696000.

The previous prime is 84408869. The next prime is 84408911. The reversal of 84408880 is 8880448.

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 (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64230 + ... + 65530.

Almost surely, 2^84408880 is an apocalyptic number.

84408880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84408880 is an abundant number, since it is smaller than the sum of its proper divisors (112234784).

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

84408880 is a wasteful number, since it uses less digits than its factorization.

84408880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125 (or 2119 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The square root of 84408880 is about 9187.4305439551. The cubic root of 84408880 is about 438.6613584885.

The spelling of 84408880 in words is "eighty-four million, four hundred eight thousand, eight hundred eighty".