616305212 has 24 divisors (see below), whose sum is σ = 1093604736. Its totient is φ = 303861168.

The previous prime is 616305211. The next prime is 616305229. The reversal of 616305212 is 212503616.

It is a super-2 number, since 2×616305212² = 759664228676729888, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616305211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 212033 + ... + 214919.

It is an arithmetic number, because the mean of its divisors is an integer number (45566864).

Almost surely, 2^616305212 is an apocalyptic number.

It is an amenable number.

616305212 is a deficient number, since it is larger than the sum of its proper divisors (477299524).

616305212 is a wasteful number, since it uses less digits than its factorization.

616305212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3617 (or 3615 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 616305212 is about 24825.4952015061. The cubic root of 616305212 is about 851.0046768527.

Adding to 616305212 its reverse (212503616), we get a palindrome (828808828).

The spelling of 616305212 in words is "six hundred sixteen million, three hundred five thousand, two hundred twelve".