68290212 has 12 divisors (see below), whose sum is σ = 159343856. Its totient is φ = 22763400.

The previous prime is 68290181. The next prime is 68290213. The reversal of 68290212 is 21209286.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 68290212.

It is not an unprimeable number, because it can be changed into a prime (68290213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2845414 + ... + 2845437.

Almost surely, 2^68290212 is an apocalyptic number.

It is an amenable number.

68290212 is an abundant number, since it is smaller than the sum of its proper divisors (91053644).

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

68290212 is a wasteful number, since it uses less digits than its factorization.

68290212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5690858 (or 5690856 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 68290212 is about 8263.7892035071. The cubic root of 68290212 is about 408.7453455502.

Adding to 68290212 its reverse (21209286), we get a palindrome (89499498).

The spelling of 68290212 in words is "sixty-eight million, two hundred ninety thousand, two hundred twelve".