396587412 has 72 divisors (see below), whose sum is σ = 1116864840. Its totient is φ = 117815040.

The previous prime is 396587369. The next prime is 396587419. The reversal of 396587412 is 214785693.

It can be written as a sum of positive squares in 4 ways, for example, as 4309776 + 392277636 = 2076^2 + 19806^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396587419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1039 + ... + 28182.

Almost surely, 2^396587412 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 396587412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558432420).

396587412 is an abundant number, since it is smaller than the sum of its proper divisors (720277428).

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

396587412 is a wasteful number, since it uses less digits than its factorization.

396587412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29273 (or 29268 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 396587412 is about 19914.5025546711. The cubic root of 396587412 is about 734.7049655796.

The spelling of 396587412 in words is "three hundred ninety-six million, five hundred eighty-seven thousand, four hundred twelve".