84144630 has 32 divisors (see below), whose sum is σ = 204966144. Its totient is φ = 22103136.

The previous prime is 84144629. The next prime is 84144647. The reversal of 84144630 is 3644148.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18922 + ... + 22941.

It is an arithmetic number, because the mean of its divisors is an integer number (6405192).

Almost surely, 2^84144630 is an apocalyptic number.

84144630 is an abundant number, since it is smaller than the sum of its proper divisors (120821514).

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

84144630 is a wasteful number, since it uses less digits than its factorization.

84144630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41940.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 84144630 is about 9173.0382098844. The cubic root of 84144630 is about 438.2031229842.

Adding to 84144630 its reverse (3644148), we get a palindrome (87788778).

The spelling of 84144630 in words is "eighty-four million, one hundred forty-four thousand, six hundred thirty".