850512124 has 192 divisors, whose sum is σ = 2090188800. Its totient is φ = 292723200.

The previous prime is 850512107. The next prime is 850512127. The reversal of 850512124 is 421215058.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 850512092 and 850512101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850512127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9556272 + ... + 9556360.

It is an arithmetic number, because the mean of its divisors is an integer number (10886400).

Almost surely, 2^850512124 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 850512124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045094400).

850512124 is an abundant number, since it is smaller than the sum of its proper divisors (1239676676).

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

850512124 is a wasteful number, since it uses less digits than its factorization.

850512124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 850512124 is about 29163.5410058518. The cubic root of 850512124 is about 947.4584416579.

The spelling of 850512124 in words is "eight hundred fifty million, five hundred twelve thousand, one hundred twenty-four".