212248328 has 8 divisors (see below), whose sum is σ = 397965630. Its totient is φ = 106124160.

The previous prime is 212248327. The next prime is 212248343. The reversal of 212248328 is 823842212.

It can be written as a sum of positive squares in only one way, i.e., 182196004 + 30052324 = 13498^2 + 5482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 212248294 and 212248303.

It is not an unprimeable number, because it can be changed into a prime (212248327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13265513 + ... + 13265528.

Almost surely, 2^212248328 is an apocalyptic number.

It is an amenable number.

212248328 is a deficient number, since it is larger than the sum of its proper divisors (185717302).

212248328 is a wasteful number, since it uses less digits than its factorization.

212248328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26531047 (or 26531043 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 212248328 is about 14568.7449013290. The cubic root of 212248328 is about 596.5059214865.

The spelling of 212248328 in words is "two hundred twelve million, two hundred forty-eight thousand, three hundred twenty-eight".