856362012 has 72 divisors (see below), whose sum is σ = 2325608208. Its totient is φ = 244231680.

The previous prime is 856361999. The next prime is 856362107. The reversal of 856362012 is 210263658.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7338 + ... + 42030.

It is an arithmetic number, because the mean of its divisors is an integer number (32300114).

Almost surely, 2^856362012 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 856362012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1162804104).

856362012 is an abundant number, since it is smaller than the sum of its proper divisors (1469246196).

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

856362012 is a wasteful number, since it uses less digits than its factorization.

856362012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34739 (or 34726 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 856362012 is about 29263.6636804075. The cubic root of 856362012 is about 949.6257110950.

The spelling of 856362012 in words is "eight hundred fifty-six million, three hundred sixty-two thousand, twelve".