664382348 has 48 divisors (see below), whose sum is σ = 1425150720. Its totient is φ = 264648384.

The previous prime is 664382317. The next prime is 664382377. The reversal of 664382348 is 843283466.

It is a super-3 number, since 3×664382348³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 664382299 and 664382308.

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, 16415 + ... + 39977.

It is an arithmetic number, because the mean of its divisors is an integer number (29690640).

Almost surely, 2^664382348 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 664382348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712575360).

664382348 is an abundant number, since it is smaller than the sum of its proper divisors (760768372).

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

664382348 is a wasteful number, since it uses less digits than its factorization.

664382348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23646 (or 23644 counting only the distinct ones).

The product of its digits is 663552, while the sum is 44.

The square root of 664382348 is about 25775.6153757772. The cubic root of 664382348 is about 872.5815548706.

It can be divided in two parts, 66438 and 2348, that added together give a palindrome (68786).

The spelling of 664382348 in words is "six hundred sixty-four million, three hundred eighty-two thousand, three hundred forty-eight".