721414212 has 12 divisors (see below), whose sum is σ = 1683299856. Its totient is φ = 240471400.

The previous prime is 721414201. The next prime is 721414219. The reversal of 721414212 is 212414127.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (721414219) 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 3 ways as a sum of consecutive naturals, for example, 30058914 + ... + 30058937.

It is an arithmetic number, because the mean of its divisors is an integer number (140274988).

Almost surely, 2^721414212 is an apocalyptic number.

It is an amenable number.

721414212 is an abundant number, since it is smaller than the sum of its proper divisors (961885644).

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

721414212 is a wasteful number, since it uses less digits than its factorization.

721414212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60117858 (or 60117856 counting only the distinct ones).

The product of its digits is 896, while the sum is 24.

The square root of 721414212 is about 26859.1550872324. The cubic root of 721414212 is about 896.8673855570.

Adding to 721414212 its reverse (212414127), we get a palindrome (933828339).

The spelling of 721414212 in words is "seven hundred twenty-one million, four hundred fourteen thousand, two hundred twelve".