612222856 has 48 divisors (see below), whose sum is σ = 1344306240. Its totient is φ = 260618400.

The previous prime is 612222839. The next prime is 612222889. The reversal of 612222856 is 658222216.

612222856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54021 + ... + 64363.

It is an arithmetic number, because the mean of its divisors is an integer number (28006380).

Almost surely, 2^612222856 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 612222856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (672153120).

612222856 is an abundant number, since it is smaller than the sum of its proper divisors (732083384).

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

612222856 is a wasteful number, since it uses less digits than its factorization.

612222856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10514 (or 10503 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 612222856 is about 24743.1375536733. The cubic root of 612222856 is about 849.1215173065.

The spelling of 612222856 in words is "six hundred twelve million, two hundred twenty-two thousand, eight hundred fifty-six".