84240860 has 96 divisors (see below), whose sum is σ = 202245120. Its totient is φ = 29203200.

The previous prime is 84240859. The next prime is 84240869. The reversal of 84240860 is 6804248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84240869) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 642995 + ... + 643125.

It is an arithmetic number, because the mean of its divisors is an integer number (2106720).

Almost surely, 2^84240860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84240860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101122560).

84240860 is an abundant number, since it is smaller than the sum of its proper divisors (118004260).

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

84240860 is a wasteful number, since it uses less digits than its factorization.

84240860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 84240860 is about 9178.2819743131. The cubic root of 84240860 is about 438.3701061964.

The spelling of 84240860 in words is "eighty-four million, two hundred forty thousand, eight hundred sixty".