3224781612 has 288 divisors, whose sum is σ = 10108627200. Its totient is φ = 883104768.

The previous prime is 3224781557. The next prime is 3224781619. The reversal of 3224781612 is 2161874223.

It is a happy number.

3224781612 is a `hidden beast` number, since 3 + 22 + 478 + 161 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3224781619) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5895123 + ... + 5895669.

It is an arithmetic number, because the mean of its divisors is an integer number (35099400).

Almost surely, 2^3224781612 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 3224781612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5054313600).

3224781612 is an abundant number, since it is smaller than the sum of its proper divisors (6883845588).

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

3224781612 is a wasteful number, since it uses less digits than its factorization.

3224781612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 601 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 3224781612 is about 56787.1606263247. The cubic root of 3224781612 is about 1477.4068317143.

The spelling of 3224781612 in words is "three billion, two hundred twenty-four million, seven hundred eighty-one thousand, six hundred twelve".