684022332 has 48 divisors (see below), whose sum is σ = 1832751872. Its totient is φ = 194503680.

The previous prime is 684022327. The next prime is 684022351. The reversal of 684022332 is 233220486.

It is a self number, because there is not a number n which added to its sum of digits gives 684022332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1573 + ... + 37020.

Almost surely, 2^684022332 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 684022332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (916375936).

684022332 is an abundant number, since it is smaller than the sum of its proper divisors (1148729540).

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

684022332 is a wasteful number, since it uses less digits than its factorization.

684022332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38818 (or 38816 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 684022332 is about 26153.8206004400. The cubic root of 684022332 is about 881.0964002905.

The spelling of 684022332 in words is "six hundred eighty-four million, twenty-two thousand, three hundred thirty-two".