850401828 has 96 divisors (see below), whose sum is σ = 2287367040. Its totient is φ = 276436800.

The previous prime is 850401817. The next prime is 850401833. The reversal of 850401828 is 828104058.

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 = 850401792 and 850401801.

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 31 ways as a sum of consecutive naturals, for example, 357483 + ... + 359853.

It is an arithmetic number, because the mean of its divisors is an integer number (23826740).

Almost surely, 2^850401828 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 850401828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1143683520).

850401828 is an abundant number, since it is smaller than the sum of its proper divisors (1436965212).

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

850401828 is a wasteful number, since it uses less digits than its factorization.

850401828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437 (or 2417 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 850401828 is about 29161.6499533205. The cubic root of 850401828 is about 947.4174838275.

It can be divided in two parts, 85040 and 1828, that added together give a palindrome (86868).

The spelling of 850401828 in words is "eight hundred fifty million, four hundred one thousand, eight hundred twenty-eight".