609349212 has 72 divisors (see below), whose sum is σ = 1612394784. Its totient is φ = 193666176.

The previous prime is 609349211. The next prime is 609349249. The reversal of 609349212 is 212943906.

609349212 is a `hidden beast` number, since 609 + 3 + 49 + 2 + 1 + 2 = 666.

609349212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609349211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307858 + ... + 309830.

It is an arithmetic number, because the mean of its divisors is an integer number (22394372).

Almost surely, 2^609349212 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 609349212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (806197392).

609349212 is an abundant number, since it is smaller than the sum of its proper divisors (1003045572).

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

609349212 is a wasteful number, since it uses less digits than its factorization.

609349212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379 (or 2374 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 609349212 is about 24684.9997366822. Note that the first 3 decimals coincide. The cubic root of 609349212 is about 847.7909012603.

The spelling of 609349212 in words is "six hundred nine million, three hundred forty-nine thousand, two hundred twelve".