43221260445 has 32 divisors (see below), whose sum is σ = 79878441600. Its totient is φ = 19723069440.

The previous prime is 43221260443. The next prime is 43221260471. The reversal of 43221260445 is 54406212234.

It is not a de Polignac number, because 43221260445 - 2¹ = 43221260443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43221260443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7701520 + ... + 7707129.

It is an arithmetic number, because the mean of its divisors is an integer number (2496201300).

Almost surely, 2^43221260445 is an apocalyptic number.

It is an amenable number.

43221260445 is a deficient number, since it is larger than the sum of its proper divisors (36657181155).

43221260445 is a wasteful number, since it uses less digits than its factorization.

43221260445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15408685.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 43221260445 its reverse (54406212234), we get a palindrome (97627472679).

The spelling of 43221260445 in words is "forty-three billion, two hundred twenty-one million, two hundred sixty thousand, four hundred forty-five".