84434250 has 64 divisors (see below), whose sum is σ = 212988672. Its totient is φ = 22276800.

The previous prime is 84434249. The next prime is 84434263. The reversal of 84434250 is 5243448.

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

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, 76704 + ... + 77796.

It is an arithmetic number, because the mean of its divisors is an integer number (3327948).

Almost surely, 2^84434250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84434250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106494336).

84434250 is an abundant number, since it is smaller than the sum of its proper divisors (128554422).

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

84434250 is a wasteful number, since it uses less digits than its factorization.

84434250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 84434250 is about 9188.8111309353. The cubic root of 84434250 is about 438.7053022217.

Adding to 84434250 its reverse (5243448), we get a palindrome (89677698).

The spelling of 84434250 in words is "eighty-four million, four hundred thirty-four thousand, two hundred fifty".