212042616 has 16 divisors (see below), whose sum is σ = 530106600. Its totient is φ = 70680864.

The previous prime is 212042609. The next prime is 212042651. The reversal of 212042616 is 616240212.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 8835109 = 212042616 / (2 + 1 + 2 + 0 + 4 + 2 + 6 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4417531 + ... + 4417578.

Almost surely, 2^212042616 is an apocalyptic number.

It is an amenable number.

212042616 is an abundant number, since it is smaller than the sum of its proper divisors (318063984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212042616 is a wasteful number, since it uses less digits than its factorization.

212042616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8835118 (or 8835114 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 212042616 is about 14561.6831444720. The cubic root of 212042616 is about 596.3131471518.

Adding to 212042616 its reverse (616240212), we get a palindrome (828282828).

The spelling of 212042616 in words is "two hundred twelve million, forty-two thousand, six hundred sixteen".