84258256 has 40 divisors (see below), whose sum is σ = 175328064. Its totient is φ = 39083520.

The previous prime is 84258247. The next prime is 84258259. The reversal of 84258256 is 65285248.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84258259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17131 + ... + 21493.

Almost surely, 2^84258256 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 84258256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87664032).

84258256 is an abundant number, since it is smaller than the sum of its proper divisors (91069808).

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

84258256 is a wasteful number, since it uses less digits than its factorization.

84258256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459 (or 4453 counting only the distinct ones).

The product of its digits is 153600, while the sum is 40.

The square root of 84258256 is about 9179.2295973028. The cubic root of 84258256 is about 438.4002790504.

The spelling of 84258256 in words is "eighty-four million, two hundred fifty-eight thousand, two hundred fifty-six".