3221502464 has 40 divisors (see below), whose sum is σ = 6500547108. Its totient is φ = 1594777600.

The previous prime is 3221502457. The next prime is 3221502467. The reversal of 3221502464 is 4642051223.

It can be written as a sum of positive squares in 2 ways, for example, as 3091360000 + 130142464 = 55600^2 + 11408^2 .

It is not an unprimeable number, because it can be changed into a prime (3221502467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20564 + ... + 82860.

Almost surely, 2^3221502464 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 3221502464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3250273554).

3221502464 is an abundant number, since it is smaller than the sum of its proper divisors (3279044644).

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

3221502464 is an equidigital number, since it uses as much as digits as its factorization.

3221502464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62416 (or 62400 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 3221502464 is about 56758.2810169582. The cubic root of 3221502464 is about 1476.9058904339.

Adding to 3221502464 its reverse (4642051223), we get a palindrome (7863553687).

The spelling of 3221502464 in words is "three billion, two hundred twenty-one million, five hundred two thousand, four hundred sixty-four".