4423213212 has 48 divisors (see below), whose sum is σ = 11443684224. Its totient is φ = 1318392000.

The previous prime is 4423213199. The next prime is 4423213241. The reversal of 4423213212 is 2123123244.

It is a happy number.

It is a super-2 number, since 2×4423213212² = 39129630237622713888, which contains 22 as substring.

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, 266614 + ... + 282717.

It is an arithmetic number, because the mean of its divisors is an integer number (238410088).

Almost surely, 2^4423213212 is an apocalyptic number.

It is an amenable number.

4423213212 is an abundant number, since it is smaller than the sum of its proper divisors (7020471012).

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

4423213212 is a wasteful number, since it uses less digits than its factorization.

4423213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549410 (or 549408 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 4423213212 is about 66507.2418011753. The cubic root of 4423213212 is about 1641.5191668877.

Adding to 4423213212 its reverse (2123123244), we get a palindrome (6546336456).

The spelling of 4423213212 in words is "four billion, four hundred twenty-three million, two hundred thirteen thousand, two hundred twelve".