3215340432 has 120 divisors (see below), whose sum is σ = 9333480000. Its totient is φ = 1032079104.

The previous prime is 3215340431. The next prime is 3215340433. The reversal of 3215340432 is 2340435123.

It is an interprime number because it is at equal distance from previous prime (3215340431) and next prime (3215340433).

It is a junction number, because it is equal to n+sod(n) for n = 3215340396 and 3215340405.

It is not an unprimeable number, because it can be changed into a prime (3215340431) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2083053 + ... + 2084595.

It is an arithmetic number, because the mean of its divisors is an integer number (77779000).

Almost surely, 2^3215340432 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 3215340432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4666740000).

3215340432 is an abundant number, since it is smaller than the sum of its proper divisors (6118139568).

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

3215340432 is a wasteful number, since it uses less digits than its factorization.

3215340432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085 (or 2076 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 3215340432 is about 56703.9719243723. The cubic root of 3215340432 is about 1475.9636230487.

Adding to 3215340432 its reverse (2340435123), we get a palindrome (5555775555).

The spelling of 3215340432 in words is "three billion, two hundred fifteen million, three hundred forty thousand, four hundred thirty-two".