3217888740 has 96 divisors (see below), whose sum is σ = 9840660480. Its totient is φ = 779184000.

The previous prime is 3217888727. The next prime is 3217888747. The reversal of 3217888740 is 478887123.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3217888740.

It is not an unprimeable number, because it can be changed into a prime (3217888747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691341 + ... + 695979.

It is an arithmetic number, because the mean of its divisors is an integer number (102506880).

Almost surely, 2^3217888740 is an apocalyptic number.

3217888740 is a gapful number since it is divisible by the number (30) 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 3217888740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4920330240).

3217888740 is an abundant number, since it is smaller than the sum of its proper divisors (6622771740).

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

3217888740 is a wasteful number, since it uses less digits than its factorization.

3217888740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5713 (or 5711 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 48.

The square root of 3217888740 is about 56726.4377517221. The cubic root of 3217888740 is about 1476.3534435337.

The spelling of 3217888740 in words is "three billion, two hundred seventeen million, eight hundred eighty-eight thousand, seven hundred forty".