213234384 has 80 divisors (see below), whose sum is σ = 603961344. Its totient is φ = 64291200.

The previous prime is 213234341. The next prime is 213234407. The reversal of 213234384 is 483432312.

213234384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116839 + ... + 118649.

Almost surely, 2^213234384 is an apocalyptic number.

213234384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213234384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301980672).

213234384 is an abundant number, since it is smaller than the sum of its proper divisors (390726960).

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

213234384 is a wasteful number, since it uses less digits than its factorization.

213234384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056 (or 2050 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 213234384 is about 14602.5471750650. The cubic root of 213234384 is about 597.4282369185.

Adding to 213234384 its reverse (483432312), we get a palindrome (696666696).

The spelling of 213234384 in words is "two hundred thirteen million, two hundred thirty-four thousand, three hundred eighty-four".