8409427212 has 24 divisors (see below), whose sum is σ = 19660561200. Its totient is φ = 2797633216.

The previous prime is 8409427199. The next prime is 8409427219. The reversal of 8409427212 is 2127249048.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8409427219) by changing a digit.

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, 682287 + ... + 694502.

It is an arithmetic number, because the mean of its divisors is an integer number (819190050).

Almost surely, 2^8409427212 is an apocalyptic number.

It is an amenable number.

8409427212 is an abundant number, since it is smaller than the sum of its proper divisors (11251133988).

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

8409427212 is a wasteful number, since it uses less digits than its factorization.

8409427212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377305 (or 1377303 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 8409427212 is about 91702.9291353335. The cubic root of 8409427212 is about 2033.5528883647.

The spelling of 8409427212 in words is "eight billion, four hundred nine million, four hundred twenty-seven thousand, two hundred twelve".