212044004 has 6 divisors (see below), whose sum is σ = 371077014. Its totient is φ = 106022000.

The previous prime is 212043989. The next prime is 212044031. The reversal of 212044004 is 400440212.

It can be written as a sum of positive squares in only one way, i.e., 200279104 + 11764900 = 14152^2 + 3430^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26505497 + ... + 26505504.

It is an arithmetic number, because the mean of its divisors is an integer number (61846169).

Almost surely, 2^212044004 is an apocalyptic number.

It is an amenable number.

212044004 is a deficient number, since it is larger than the sum of its proper divisors (159033010).

212044004 is a wasteful number, since it uses less digits than its factorization.

212044004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53011005 (or 53011003 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 212044004 is about 14561.7308037197. The cubic root of 212044004 is about 596.3144482752.

Adding to 212044004 its reverse (400440212), we get a palindrome (612484216).

The spelling of 212044004 in words is "two hundred twelve million, forty-four thousand, four".