3502220202 has 48 divisors (see below), whose sum is σ = 8207657640. Its totient is φ = 1072884096.

The previous prime is 3502220171. The next prime is 3502220203. The reversal of 3502220202 is 2020222053.

It can be written as a sum of positive squares in 4 ways, for example, as 3493873881 + 8346321 = 59109^2 + 2889^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3502220203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20908 + ... + 86264.

Almost surely, 2^3502220202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3502220202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4103828820).

3502220202 is an abundant number, since it is smaller than the sum of its proper divisors (4705437438).

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

3502220202 is a wasteful number, since it uses less digits than its factorization.

3502220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65607 (or 65604 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 3502220202 is about 59179.5589878803. The cubic root of 3502220202 is about 1518.6154581218.

Adding to 3502220202 its reverse (2020222053), we get a palindrome (5522442255).

The spelling of 3502220202 in words is "three billion, five hundred two million, two hundred twenty thousand, two hundred two".