512021444 has 12 divisors (see below), whose sum is σ = 977495568. Its totient is φ = 232737000.

The previous prime is 512021441. The next prime is 512021483. The reversal of 512021444 is 444120215.

It is not an unprimeable number, because it can be changed into a prime (512021441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5818382 + ... + 5818469.

It is an arithmetic number, because the mean of its divisors is an integer number (81457964).

Almost surely, 2^512021444 is an apocalyptic number.

It is an amenable number.

512021444 is a deficient number, since it is larger than the sum of its proper divisors (465474124).

512021444 is a wasteful number, since it uses less digits than its factorization.

512021444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11636866 (or 11636864 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 512021444 is about 22627.8908429398. The cubic root of 512021444 is about 800.0111685941.

Adding to 512021444 its reverse (444120215), we get a palindrome (956141659).

The spelling of 512021444 in words is "five hundred twelve million, twenty-one thousand, four hundred forty-four".