646327350 has 120 divisors (see below), whose sum is σ = 1858095360. Its totient is φ = 166380480.

The previous prime is 646327349. The next prime is 646327387. The reversal of 646327350 is 53723646.

646327350 is a `hidden beast` number, since 646 + 3 + 2 + 7 + 3 + 5 + 0 = 666.

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 59 ways as a sum of consecutive naturals, for example, 114699 + ... + 120201.

It is an arithmetic number, because the mean of its divisors is an integer number (15484128).

Almost surely, 2^646327350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 646327350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (929047680).

646327350 is an abundant number, since it is smaller than the sum of its proper divisors (1211768010).

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

646327350 is a wasteful number, since it uses less digits than its factorization.

646327350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5556 (or 5542 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 646327350 is about 25422.9689454241. The cubic root of 646327350 is about 864.6045392905.

The spelling of 646327350 in words is "six hundred forty-six million, three hundred twenty-seven thousand, three hundred fifty".