213009992 has 32 divisors (see below), whose sum is σ = 448822080. Its totient is φ = 94036800.

The previous prime is 213009989. The next prime is 213010013. The reversal of 213009992 is 299900312.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 42134 + ... + 46917.

It is an arithmetic number, because the mean of its divisors is an integer number (14025690).

Almost surely, 2^213009992 is an apocalyptic number.

It is an amenable number.

213009992 is an abundant number, since it is smaller than the sum of its proper divisors (235812088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213009992 is a wasteful number, since it uses less digits than its factorization.

213009992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89093 (or 89089 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 213009992 is about 14594.8618355913. The cubic root of 213009992 is about 597.2186003577.

The spelling of 213009992 in words is "two hundred thirteen million, nine thousand, nine hundred ninety-two".