213532242 has 32 divisors (see below), whose sum is σ = 532445184. Its totient is φ = 55462800.

The previous prime is 213532237. The next prime is 213532243. The reversal of 213532242 is 242235312.

It is not an unprimeable number, because it can be changed into a prime (213532243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230634 + ... + 231557.

It is an arithmetic number, because the mean of its divisors is an integer number (16638912).

Almost surely, 2^213532242 is an apocalyptic number.

213532242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213532242 is an abundant number, since it is smaller than the sum of its proper divisors (318912942).

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

213532242 is a wasteful number, since it uses less digits than its factorization.

213532242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462214.

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

The square root of 213532242 is about 14612.7424530784. The cubic root of 213532242 is about 597.7062814882.

Adding to 213532242 its reverse (242235312), we get a palindrome (455767554).

The spelling of 213532242 in words is "two hundred thirteen million, five hundred thirty-two thousand, two hundred forty-two".