396867584 has 48 divisors (see below), whose sum is σ = 840294000. Its totient is φ = 186744832.

The previous prime is 396867557. The next prime is 396867607. The reversal of 396867584 is 485768693.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29117 + ... + 40515.

It is an arithmetic number, because the mean of its divisors is an integer number (17506125).

Almost surely, 2^396867584 is an apocalyptic number.

396867584 is a gapful number since it is divisible by the number (34) 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 396867584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420147000).

396867584 is an abundant number, since it is smaller than the sum of its proper divisors (443426416).

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

396867584 is a wasteful number, since it uses less digits than its factorization.

396867584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11438 (or 11418 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 56.

The square root of 396867584 is about 19921.5356837770. The cubic root of 396867584 is about 734.8779373711.

The spelling of 396867584 in words is "three hundred ninety-six million, eight hundred sixty-seven thousand, five hundred eighty-four".