84270224 has 40 divisors (see below), whose sum is σ = 173560320. Its totient is φ = 39500288.

The previous prime is 84270217. The next prime is 84270227. The reversal of 84270224 is 42207248.

84270224 = T₂₆₂ + T₂₆₃ + ... + T₈₀₅.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84270227) 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 7 ways as a sum of consecutive naturals, for example, 97217 + ... + 98079.

It is an arithmetic number, because the mean of its divisors is an integer number (4339008).

Almost surely, 2^84270224 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 84270224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86780160).

84270224 is an abundant number, since it is smaller than the sum of its proper divisors (89290096).

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

84270224 is a wasteful number, since it uses less digits than its factorization.

84270224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 84270224 is about 9179.8814807164. The cubic root of 84270224 is about 438.4210347856.

The spelling of 84270224 in words is "eighty-four million, two hundred seventy thousand, two hundred twenty-four".