2012023445 has 32 divisors (see below), whose sum is σ = 2494942560. Its totient is φ = 1557135360.

The previous prime is 2012023441. The next prime is 2012023477. The reversal of 2012023445 is 5443202102.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 35509681 + 1976513764 = 5959^2 + 44458^2 .

It is not a de Polignac number, because 2012023445 - 2² = 2012023441 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012023445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012023441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7828757 + ... + 7829013.

It is an arithmetic number, because the mean of its divisors is an integer number (77966955).

Almost surely, 2^2012023445 is an apocalyptic number.

It is an amenable number.

2012023445 is a deficient number, since it is larger than the sum of its proper divisors (482919115).

2012023445 is a wasteful number, since it uses less digits than its factorization.

2012023445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2012023445 is about 44855.5843234708. The cubic root of 2012023445 is about 1262.4407725703.

Adding to 2012023445 its reverse (5443202102), we get a palindrome (7455225547).

The spelling of 2012023445 in words is "two billion, twelve million, twenty-three thousand, four hundred forty-five".