85456224 has 288 divisors, whose sum is σ = 308206080. Its totient is φ = 21897216.

The previous prime is 85456207. The next prime is 85456253. The reversal of 85456224 is 42265458.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 880944 + ... + 881040.

It is an arithmetic number, because the mean of its divisors is an integer number (1070160).

Almost surely, 2^85456224 is an apocalyptic number.

85456224 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85456224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154103040).

85456224 is an abundant number, since it is smaller than the sum of its proper divisors (222749856).

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

85456224 is a wasteful number, since it uses less digits than its factorization.

85456224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 151 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 85456224 is about 9244.2535664055. The cubic root of 85456224 is about 440.4682068355.

The spelling of 85456224 in words is "eighty-five million, four hundred fifty-six thousand, two hundred twenty-four".