210229664 has 12 divisors (see below), whose sum is σ = 413889714. Its totient is φ = 105114816.

The previous prime is 210229627. The next prime is 210229703. The reversal of 210229664 is 466922012.

It can be written as a sum of positive squares in only one way, i.e., 210018064 + 211600 = 14492^2 + 460^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 6569677 = 210229664 / (2 + 1 + 0 + 2 + 2 + 9 + 6 + 6 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 210229664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3284807 + ... + 3284870.

Almost surely, 2^210229664 is an apocalyptic number.

It is an amenable number.

210229664 is a deficient number, since it is larger than the sum of its proper divisors (203660050).

210229664 is an equidigital number, since it uses as much as digits as its factorization.

210229664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6569687 (or 6569679 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 210229664 is about 14499.2987416633. The cubic root of 210229664 is about 594.6087996493.

The spelling of 210229664 in words is "two hundred ten million, two hundred twenty-nine thousand, six hundred sixty-four".