403443220212 has 18 divisors (see below), whose sum is σ = 1019814806738. Its totient is φ = 134481073392.

The previous prime is 403443220199. The next prime is 403443220247. The reversal of 403443220212 is 212022344304.

403443220212 is a `hidden beast` number, since 4 + 0 + 3 + 443 + 2 + 2 + 0 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 331492668516 + 71950551696 = 575754^2 + 268236^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5603378023 + ... + 5603378094.

Almost surely, 2^403443220212 is an apocalyptic number.

It is an amenable number.

403443220212 is an abundant number, since it is smaller than the sum of its proper divisors (616371586526).

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

403443220212 is a wasteful number, since it uses less digits than its factorization.

403443220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11206756127 (or 11206756122 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 403443220212 its reverse (212022344304), we get a palindrome (615465564516).

The spelling of 403443220212 in words is "four hundred three billion, four hundred forty-three million, two hundred twenty thousand, two hundred twelve".