210397228 has 12 divisors (see below), whose sum is σ = 368573632. Its totient is φ = 105090480.

The previous prime is 210397223. The next prime is 210397247. The reversal of 210397228 is 822793012.

It is a junction number, because it is equal to n+sod(n) for n = 210397193 and 210397202.

It is not an unprimeable number, because it can be changed into a prime (210397223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22575 + ... + 30502.

Almost surely, 2^210397228 is an apocalyptic number.

It is an amenable number.

210397228 is a deficient number, since it is larger than the sum of its proper divisors (158176404).

210397228 is a wasteful number, since it uses less digits than its factorization.

210397228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54072 (or 54070 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 210397228 is about 14505.0759391325. The cubic root of 210397228 is about 594.7667357643.

The spelling of 210397228 in words is "two hundred ten million, three hundred ninety-seven thousand, two hundred twenty-eight".