3212423340 has 144 divisors (see below), whose sum is σ = 10918478592. Its totient is φ = 702328704.

The previous prime is 3212423323. The next prime is 3212423341. The reversal of 3212423340 is 433242123.

It is a self number, because there is not a number n which added to its sum of digits gives 3212423340.

It is not an unprimeable number, because it can be changed into a prime (3212423341) 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 47 ways as a sum of consecutive naturals, for example, 43867 + ... + 91373.

It is an arithmetic number, because the mean of its divisors is an integer number (75822768).

Almost surely, 2^3212423340 is an apocalyptic number.

3212423340 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 3212423340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5459239296).

3212423340 is an abundant number, since it is smaller than the sum of its proper divisors (7706055252).

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

3212423340 is a wasteful number, since it uses less digits than its factorization.

3212423340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47556 (or 47547 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 3212423340 is about 56678.2439742094. The cubic root of 3212423340 is about 1475.5171359166.

Adding to 3212423340 its reverse (433242123), we get a palindrome (3645665463).

The spelling of 3212423340 in words is "three billion, two hundred twelve million, four hundred twenty-three thousand, three hundred forty".