85446144 has 160 divisors (see below), whose sum is σ = 289386240. Its totient is φ = 24385536.

The previous prime is 85446133. The next prime is 85446167. The reversal of 85446144 is 44164458.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 85446099 and 85446108.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 96327 + ... + 97209.

It is an arithmetic number, because the mean of its divisors is an integer number (1808664).

Almost surely, 2^85446144 is an apocalyptic number.

85446144 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 85446144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144693120).

85446144 is an abundant number, since it is smaller than the sum of its proper divisors (203940096).

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

85446144 is an equidigital number, since it uses as much as digits as its factorization.

85446144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 895 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 85446144 is about 9243.7083467621. The cubic root of 85446144 is about 440.4508876597.

The spelling of 85446144 in words is "eighty-five million, four hundred forty-six thousand, one hundred forty-four".