403222212 has 60 divisors (see below), whose sum is σ = 1076570880. Its totient is φ = 131542704.

The previous prime is 403222187. The next prime is 403222273. The reversal of 403222212 is 212222304.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1989 + ... + 28467.

It is an arithmetic number, because the mean of its divisors is an integer number (17942848).

Almost surely, 2^403222212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403222212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538285440).

403222212 is an abundant number, since it is smaller than the sum of its proper divisors (673348668).

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

403222212 is a wasteful number, since it uses less digits than its factorization.

403222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26542 (or 26531 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 403222212 is about 20080.3937212396. The cubic root of 403222212 is about 738.7794659586.

Adding to 403222212 its reverse (212222304), we get a palindrome (615444516).

It can be divided in two parts, 4032 and 22212, that added together give a square (26244 = 162²).

The spelling of 403222212 in words is "four hundred three million, two hundred twenty-two thousand, two hundred twelve".