43403403212 has 24 divisors (see below), whose sum is σ = 81887820000. Its totient is φ = 20010519936.

The previous prime is 43403403209. The next prime is 43403403221. The reversal of 43403403212 is 21230430434.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406337 + ... + 501912.

It is an arithmetic number, because the mean of its divisors is an integer number (3411992500).

Almost surely, 2^43403403212 is an apocalyptic number.

It is an amenable number.

43403403212 is a deficient number, since it is larger than the sum of its proper divisors (38484416788).

43403403212 is a wasteful number, since it uses less digits than its factorization.

43403403212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909185 (or 909183 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 43403403212 its reverse (21230430434), we get a palindrome (64633833646).

The spelling of 43403403212 in words is "forty-three billion, four hundred three million, four hundred three thousand, two hundred twelve".