213039992 has 32 divisors (see below), whose sum is σ = 436579200. Its totient is φ = 96655200.

The previous prime is 213039991. The next prime is 213039997. The reversal of 213039992 is 299930312.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213039991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52517 + ... + 56427.

It is an arithmetic number, because the mean of its divisors is an integer number (13643100).

Almost surely, 2^213039992 is an apocalyptic number.

213039992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213039992 is an abundant number, since it is smaller than the sum of its proper divisors (223539208).

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

213039992 is a wasteful number, since it uses less digits than its factorization.

213039992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547 (or 4543 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 213039992 is about 14595.8895583654. The cubic root of 213039992 is about 597.2466361582.

The spelling of 213039992 in words is "two hundred thirteen million, thirty-nine thousand, nine hundred ninety-two".