43434220023 has 24 divisors (see below), whose sum is σ = 66486790656. Its totient is φ = 27229056000.

The previous prime is 43434220021. The next prime is 43434220097. The reversal of 43434220023 is 32002243434.

43434220023 is a `hidden beast` number, since 4 + 3 + 434 + 2 + 200 + 23 = 666.

It is not a de Polignac number, because 43434220023 - 2¹ = 43434220021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43434220021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52783 + ... + 299423.

It is an arithmetic number, because the mean of its divisors is an integer number (2770282944).

Almost surely, 2^43434220023 is an apocalyptic number.

43434220023 is a deficient number, since it is larger than the sum of its proper divisors (23052570633).

43434220023 is a wasteful number, since it uses less digits than its factorization.

43434220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247815 (or 247812 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 43434220023 its reverse (32002243434), we get a palindrome (75436463457).

The spelling of 43434220023 in words is "forty-three billion, four hundred thirty-four million, two hundred twenty thousand, twenty-three".