2012022078 has 64 divisors (see below), whose sum is σ = 4544225280. Its totient is φ = 588376800.

The previous prime is 2012022049. The next prime is 2012022079. The reversal of 2012022078 is 8702202102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012022079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 856101 + ... + 858447.

It is an arithmetic number, because the mean of its divisors is an integer number (71003520).

Almost surely, 2^2012022078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012022078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2272112640).

2012022078 is an abundant number, since it is smaller than the sum of its proper divisors (2532203202).

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

2012022078 is a wasteful number, since it uses less digits than its factorization.

2012022078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2012022078 is about 44855.5690856776. The cubic root of 2012022078 is about 1262.4404866630.

The spelling of 2012022078 in words is "two billion, twelve million, twenty-two thousand, seventy-eight".