212430004 has 6 divisors (see below), whose sum is σ = 371752514. Its totient is φ = 106215000.

The previous prime is 212429983. The next prime is 212430037. The reversal of 212430004 is 400034212.

212430004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 166461604 + 45968400 = 12902^2 + 6780^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212430004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26553747 + ... + 26553754.

Almost surely, 2^212430004 is an apocalyptic number.

It is an amenable number.

212430004 is a deficient number, since it is larger than the sum of its proper divisors (159322510).

212430004 is a wasteful number, since it uses less digits than its factorization.

212430004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53107505 (or 53107503 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 212430004 is about 14574.9786963824. The cubic root of 212430004 is about 596.6760679452.

Adding to 212430004 its reverse (400034212), we get a palindrome (612464216).

The spelling of 212430004 in words is "two hundred twelve million, four hundred thirty thousand, four".