85449210 has 128 divisors (see below), whose sum is σ = 259780608. Its totient is φ = 17472000.

The previous prime is 85449193. The next prime is 85449223. The reversal of 85449210 is 1294458.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163750 + ... + 164270.

It is an arithmetic number, because the mean of its divisors is an integer number (2029536).

Almost surely, 2^85449210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85449210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129890304).

85449210 is an abundant number, since it is smaller than the sum of its proper divisors (174331398).

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

85449210 is a wasteful number, since it uses less digits than its factorization.

85449210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 85449210 is about 9243.8741878068. The cubic root of 85449210 is about 440.4561557198.

The spelling of 85449210 in words is "eighty-five million, four hundred forty-nine thousand, two hundred ten".