84450210 has 64 divisors (see below), whose sum is σ = 221114880. Its totient is φ = 20517120.

The previous prime is 84450187. The next prime is 84450229. The reversal of 84450210 is 1205448.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 29440 + ... + 32180.

It is an arithmetic number, because the mean of its divisors is an integer number (3454920).

Almost surely, 2^84450210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84450210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110557440).

84450210 is an abundant number, since it is smaller than the sum of its proper divisors (136664670).

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

84450210 is a wasteful number, since it uses less digits than its factorization.

84450210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 84450210 is about 9189.6795373941. The cubic root of 84450210 is about 438.7329422513.

Adding to 84450210 its reverse (1205448), we get a palindrome (85655658).

The spelling of 84450210 in words is "eighty-four million, four hundred fifty thousand, two hundred ten".