212293028 has 6 divisors (see below), whose sum is σ = 371512806. Its totient is φ = 106146512.

The previous prime is 212293019. The next prime is 212293049. The reversal of 212293028 is 820392212.

212293028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 195384484 + 16908544 = 13978^2 + 4112^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26536625 + ... + 26536632.

It is an arithmetic number, because the mean of its divisors is an integer number (61918801).

Almost surely, 2^212293028 is an apocalyptic number.

It is an amenable number.

212293028 is a deficient number, since it is larger than the sum of its proper divisors (159219778).

212293028 is a wasteful number, since it uses less digits than its factorization.

212293028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53073261 (or 53073259 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 212293028 is about 14570.2789266369. The cubic root of 212293028 is about 596.5477937332.

The spelling of 212293028 in words is "two hundred twelve million, two hundred ninety-three thousand, twenty-eight".