3505240220 has 12 divisors (see below), whose sum is σ = 7361004504. Its totient is φ = 1402096080.

The previous prime is 3505240201. The next prime is 3505240231. The reversal of 3505240220 is 220425053.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87630986 + ... + 87631025.

It is an arithmetic number, because the mean of its divisors is an integer number (613417042).

Almost surely, 2^3505240220 is an apocalyptic number.

It is an amenable number.

3505240220 is an abundant number, since it is smaller than the sum of its proper divisors (3855764284).

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

3505240220 is a wasteful number, since it uses less digits than its factorization.

3505240220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175262020 (or 175262018 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 3505240220 is about 59205.0692086412. The cubic root of 3505240220 is about 1519.0518411514.

Adding to 3505240220 its reverse (220425053), we get a palindrome (3725665273).

The spelling of 3505240220 in words is "three billion, five hundred five million, two hundred forty thousand, two hundred twenty".