212046628 has 6 divisors (see below), whose sum is σ = 371081606. Its totient is φ = 106023312.

The previous prime is 212046617. The next prime is 212046641. The reversal of 212046628 is 826640212.

It can be written as a sum of positive squares in only one way, i.e., 157552704 + 54493924 = 12552^2 + 7382^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212046628.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26505825 + ... + 26505832.

Almost surely, 2^212046628 is an apocalyptic number.

It is an amenable number.

212046628 is a deficient number, since it is larger than the sum of its proper divisors (159034978).

212046628 is a wasteful number, since it uses less digits than its factorization.

212046628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53011661 (or 53011659 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 212046628 is about 14561.8209026207. The cubic root of 212046628 is about 596.3169080204.

The spelling of 212046628 in words is "two hundred twelve million, forty-six thousand, six hundred twenty-eight".