3507221604 has 96 divisors (see below), whose sum is σ = 8622028800. Its totient is φ = 1108132480.

The previous prime is 3507221603. The next prime is 3507221623. The reversal of 3507221604 is 4061227053.

It is not an unprimeable number, because it can be changed into a prime (3507221603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4877557 + ... + 4878275.

It is an arithmetic number, because the mean of its divisors is an integer number (89812800).

Almost surely, 2^3507221604 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 3507221604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4311014400).

3507221604 is an abundant number, since it is smaller than the sum of its proper divisors (5114807196).

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

3507221604 is a wasteful number, since it uses less digits than its factorization.

3507221604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 3507221604 is about 59221.8000739593. The cubic root of 3507221604 is about 1519.3380087070.

Adding to 3507221604 its reverse (4061227053), we get a palindrome (7568448657).

The spelling of 3507221604 in words is "three billion, five hundred seven million, two hundred twenty-one thousand, six hundred four".