396589680 has 120 divisors (see below), whose sum is σ = 1367968992. Its totient is φ = 102892032.

The previous prime is 396589673. The next prime is 396589723. The reversal of 396589680 is 86985693.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19197 + ... + 34083.

Almost surely, 2^396589680 is an apocalyptic number.

396589680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396589680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683984496).

396589680 is an abundant number, since it is smaller than the sum of its proper divisors (971379312).

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

396589680 is a wasteful number, since it uses less digits than its factorization.

396589680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14943 (or 14934 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 396589680 is about 19914.5594980155. The cubic root of 396589680 is about 734.7063661180.

The spelling of 396589680 in words is "three hundred ninety-six million, five hundred eighty-nine thousand, six hundred eighty".