212042444 has 12 divisors (see below), whose sum is σ = 372285144. Its totient is φ = 105675264.

The previous prime is 212042437. The next prime is 212042459. The reversal of 212042444 is 444240212.

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, 85109 + ... + 87564.

It is an arithmetic number, because the mean of its divisors is an integer number (31023762).

Almost surely, 2^212042444 is an apocalyptic number.

It is an amenable number.

212042444 is a deficient number, since it is larger than the sum of its proper divisors (160242700).

212042444 is a wasteful number, since it uses less digits than its factorization.

212042444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172984 (or 172982 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 212042444 is about 14561.6772385601. The cubic root of 212042444 is about 596.3129859170.

Adding to 212042444 its reverse (444240212), we get a palindrome (656282656).

The spelling of 212042444 in words is "two hundred twelve million, forty-two thousand, four hundred forty-four".