212044445 has 8 divisors (see below), whose sum is σ = 254621880. Its totient is φ = 169523200.

The previous prime is 212044421. The next prime is 212044457. The reversal of 212044445 is 544440212.

212044445 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 4 ways, for example, as 57365476 + 154678969 = 7574^2 + 12437^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212044445 - 2⁶ = 212044381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5240 + ... + 21249.

It is an arithmetic number, because the mean of its divisors is an integer number (31827735).

Almost surely, 2^212044445 is an apocalyptic number.

It is an amenable number.

212044445 is a deficient number, since it is larger than the sum of its proper divisors (42577435).

212044445 is a wasteful number, since it uses less digits than its factorization.

212044445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28095.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 212044445 is about 14561.7459461426. The cubic root of 212044445 is about 596.3148616713.

Adding to 212044445 its reverse (544440212), we get a palindrome (756484657).

The spelling of 212044445 in words is "two hundred twelve million, forty-four thousand, four hundred forty-five".