213422532 has 12 divisors (see below), whose sum is σ = 497985936. Its totient is φ = 71140840.

The previous prime is 213422519. The next prime is 213422533. The reversal of 213422532 is 235224312.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (213422533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8892594 + ... + 8892617.

It is an arithmetic number, because the mean of its divisors is an integer number (41498828).

Almost surely, 2^213422532 is an apocalyptic number.

It is an amenable number.

213422532 is an abundant number, since it is smaller than the sum of its proper divisors (284563404).

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

213422532 is a wasteful number, since it uses less digits than its factorization.

213422532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17785218 (or 17785216 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 213422532 is about 14608.9880553035. The cubic root of 213422532 is about 597.6038994636.

Adding to 213422532 its reverse (235224312), we get a palindrome (448646844).

The spelling of 213422532 in words is "two hundred thirteen million, four hundred twenty-two thousand, five hundred thirty-two".