213244332 has 24 divisors (see below), whose sum is σ = 568651776. Its totient is φ = 60926928.

The previous prime is 213244331. The next prime is 213244351. The reversal of 213244332 is 233442312.

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

It is not an unprimeable number, because it can be changed into a prime (213244331) 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, 1269228 + ... + 1269395.

It is an arithmetic number, because the mean of its divisors is an integer number (23693824).

Almost surely, 2^213244332 is an apocalyptic number.

It is an amenable number.

213244332 is an abundant number, since it is smaller than the sum of its proper divisors (355407444).

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

213244332 is a wasteful number, since it uses less digits than its factorization.

213244332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538637 (or 2538635 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 213244332 is about 14602.8877965969. The cubic root of 213244332 is about 597.4375273583.

Adding to 213244332 its reverse (233442312), we get a palindrome (446686644).

It can be divided in two parts, 2132 and 44332, that added together give a palindrome (46464).

The spelling of 213244332 in words is "two hundred thirteen million, two hundred forty-four thousand, three hundred thirty-two".