396599824 has 40 divisors (see below), whose sum is σ = 797281560. Its totient is φ = 190891008.

The previous prime is 396599821. The next prime is 396599843. The reversal of 396599824 is 428995693.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21790224 + 374809600 = 4668^2 + 19360^2 .

It is not an unprimeable number, because it can be changed into a prime (396599821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183132 + ... + 185284.

It is an arithmetic number, because the mean of its divisors is an integer number (19932039).

Almost surely, 2^396599824 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 396599824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398640780).

396599824 is an abundant number, since it is smaller than the sum of its proper divisors (400681736).

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

396599824 is a wasteful number, since it uses less digits than its factorization.

396599824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587 (or 2581 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 55.

The square root of 396599824 is about 19914.8141844206. The cubic root of 396599824 is about 734.7126301891.

The spelling of 396599824 in words is "three hundred ninety-six million, five hundred ninety-nine thousand, eight hundred twenty-four".