3215775424 has 56 divisors (see below), whose sum is σ = 6552242928. Its totient is φ = 1565291520.

The previous prime is 3215775397. The next prime is 3215775439. The reversal of 3215775424 is 4245775123.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440734 + ... + 447970.

It is an arithmetic number, because the mean of its divisors is an integer number (117004338).

Almost surely, 2^3215775424 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 3215775424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3276121464).

3215775424 is an abundant number, since it is smaller than the sum of its proper divisors (3336467504).

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

3215775424 is a wasteful number, since it uses less digits than its factorization.

3215775424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7433 (or 7423 counting only the distinct ones).

The product of its digits is 235200, while the sum is 40.

The square root of 3215775424 is about 56707.8074342502. The cubic root of 3215775424 is about 1476.0301793415.

The spelling of 3215775424 in words is "three billion, two hundred fifteen million, seven hundred seventy-five thousand, four hundred twenty-four".