84045580 has 12 divisors (see below), whose sum is σ = 176495760. Its totient is φ = 33618224.

The previous prime is 84045503. The next prime is 84045581. The reversal of 84045580 is 8554048.

It is not an unprimeable number, because it can be changed into a prime (84045581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2101120 + ... + 2101159.

It is an arithmetic number, because the mean of its divisors is an integer number (14707980).

Almost surely, 2^84045580 is an apocalyptic number.

It is an amenable number.

84045580 is an abundant number, since it is smaller than the sum of its proper divisors (92450180).

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

84045580 is a wasteful number, since it uses less digits than its factorization.

84045580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202288 (or 4202286 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 84045580 is about 9167.6376455442. The cubic root of 84045580 is about 438.0311133490.

The spelling of 84045580 in words is "eighty-four million, forty-five thousand, five hundred eighty".