213434544 has 20 divisors (see below), whose sum is σ = 551372696. Its totient is φ = 71144832.

The previous prime is 213434509. The next prime is 213434563. The reversal of 213434544 is 445434312.

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 3 ways as a sum of consecutive naturals, for example, 2223229 + ... + 2223324.

Almost surely, 2^213434544 is an apocalyptic number.

213434544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

213434544 is an abundant number, since it is smaller than the sum of its proper divisors (337938152).

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

213434544 is a wasteful number, since it uses less digits than its factorization.

213434544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446564 (or 4446558 counting only the distinct ones).

The product of its digits is 23040, while the sum is 30.

The square root of 213434544 is about 14609.3991662902. The cubic root of 213434544 is about 597.6151108437.

Adding to 213434544 its reverse (445434312), we get a palindrome (658868856).

The spelling of 213434544 in words is "two hundred thirteen million, four hundred thirty-four thousand, five hundred forty-four".