684145332 has 48 divisors (see below), whose sum is σ = 1910153280. Its totient is φ = 210505824.

The previous prime is 684145313. The next prime is 684145337. The reversal of 684145332 is 233541486.

684145332 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 (684145337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242238 + ... + 245045.

It is an arithmetic number, because the mean of its divisors is an integer number (39794860).

Almost surely, 2^684145332 is an apocalyptic number.

It is an amenable number.

684145332 is an abundant number, since it is smaller than the sum of its proper divisors (1226007948).

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

684145332 is a wasteful number, since it uses less digits than its factorization.

684145332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487309 (or 487301 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 684145332 is about 26156.1719676255. The cubic root of 684145332 is about 881.1492096589.

The spelling of 684145332 in words is "six hundred eighty-four million, one hundred forty-five thousand, three hundred thirty-two".