3214318640 has 80 divisors (see below), whose sum is σ = 8066962848. Its totient is φ = 1184053248.

The previous prime is 3214318543. The next prime is 3214318661. The reversal of 3214318640 is 468134123.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 3214318597 and 3214318606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471899 + ... + 478661.

Almost surely, 2^3214318640 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 3214318640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4033481424).

3214318640 is an abundant number, since it is smaller than the sum of its proper divisors (4852644208).

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

3214318640 is a wasteful number, since it uses less digits than its factorization.

3214318640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7246 (or 7240 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 3214318640 is about 56694.9613281463. The cubic root of 3214318640 is about 1475.8072593461.

The spelling of 3214318640 in words is "three billion, two hundred fourteen million, three hundred eighteen thousand, six hundred forty".