43452204520 has 32 divisors (see below), whose sum is σ = 101138754600. Its totient is φ = 16781540608.

The previous prime is 43452204517. The next prime is 43452204529. The reversal of 43452204520 is 2540225434.

It can be written as a sum of positive squares in 4 ways, for example, as 42752178756 + 700025764 = 206766^2 + 26458^2 .

It is not an unprimeable number, because it can be changed into a prime (43452204529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18728239 + ... + 18730558.

Almost surely, 2^43452204520 is an apocalyptic number.

43452204520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43452204520 is an abundant number, since it is smaller than the sum of its proper divisors (57686550080).

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

43452204520 is a wasteful number, since it uses less digits than its factorization.

43452204520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37458837 (or 37458833 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 43452204520 its reverse (2540225434), we get a palindrome (45992429954).

The spelling of 43452204520 in words is "forty-three billion, four hundred fifty-two million, two hundred four thousand, five hundred twenty".