4012020452 has 12 divisors (see below), whose sum is σ = 7659311856. Its totient is φ = 1823645640.

The previous prime is 4012020431. The next prime is 4012020461. The reversal of 4012020452 is 2540202104.

It is a happy number.

4012020452 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 3 ways as a sum of consecutive naturals, for example, 45591098 + ... + 45591185.

It is an arithmetic number, because the mean of its divisors is an integer number (638275988).

Almost surely, 2^4012020452 is an apocalyptic number.

It is an amenable number.

4012020452 is a deficient number, since it is larger than the sum of its proper divisors (3647291404).

4012020452 is a wasteful number, since it uses less digits than its factorization.

4012020452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91182298 (or 91182296 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 4012020452 is about 63340.5119335169. The cubic root of 4012020452 is about 1588.9895683180.

Adding to 4012020452 its reverse (2540202104), we get a palindrome (6552222556).

The spelling of 4012020452 in words is "four billion, twelve million, twenty thousand, four hundred fifty-two".