43223013 has 6 divisors (see below), whose sum is σ = 62433254. Its totient is φ = 28815336.

The previous prime is 43222961. The next prime is 43223017. The reversal of 43223013 is 31032234.

43223013 is a `hidden beast` number, since 432 + 230 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42810849 + 412164 = 6543^2 + 642^2 .

It is not a de Polignac number, because 43223013 - 2¹⁴ = 43206629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43223017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2401270 + ... + 2401287.

Almost surely, 2^43223013 is an apocalyptic number.

It is an amenable number.

43223013 is a deficient number, since it is larger than the sum of its proper divisors (19210241).

43223013 is a wasteful number, since it uses less digits than its factorization.

43223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4802563 (or 4802560 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 43223013 is about 6574.4211152009. The cubic root of 43223013 is about 350.9444234698.

Adding to 43223013 its reverse (31032234), we get a palindrome (74255247).

The spelling of 43223013 in words is "forty-three million, two hundred twenty-three thousand, thirteen".