684146232 has 432 divisors, whose sum is σ = 2538754920. Its totient is φ = 164505600.

The previous prime is 684146231. The next prime is 684146263. The reversal of 684146232 is 232641486.

684146232 is a `hidden beast` number, since 6 + 8 + 414 + 6 + 232 = 666.

684146232 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 nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684146231) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 11215482 + ... + 11215542.

Almost surely, 2^684146232 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 684146232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1269377460).

684146232 is an abundant number, since it is smaller than the sum of its proper divisors (1854608688).

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

684146232 is a wasteful number, since it uses less digits than its factorization.

684146232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 101 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 684146232 is about 26156.1891719723. The cubic root of 684146232 is about 881.1495960456.

The spelling of 684146232 in words is "six hundred eighty-four million, one hundred forty-six thousand, two hundred thirty-two".