210009992 has 16 divisors (see below), whose sum is σ = 394026000. Its totient is φ = 104936400.

The previous prime is 210009991. The next prime is 210009997. The reversal of 210009992 is 299900012.

It is not an unprimeable number, because it can be changed into a prime (210009991) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 5867 + ... + 21317.

It is an arithmetic number, because the mean of its divisors is an integer number (24626625).

Almost surely, 2^210009992 is an apocalyptic number.

It is an amenable number.

210009992 is a deficient number, since it is larger than the sum of its proper divisors (184016008).

210009992 is a wasteful number, since it uses less digits than its factorization.

210009992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17156 (or 17152 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 210009992 is about 14491.7214988420. The cubic root of 210009992 is about 594.4016223757.

The spelling of 210009992 in words is "two hundred ten million, nine thousand, nine hundred ninety-two".