3520003700 has 18 divisors (see below), whose sum is σ = 7638408246. Its totient is φ = 1408001440.

The previous prime is 3520003691. The next prime is 3520003703. The reversal of 3520003700 is 73000253.

It can be written as a sum of positive squares in 3 ways, for example, as 13942756 + 3506060944 = 3734^2 + 59212^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520003703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17599919 + ... + 17600118.

Almost surely, 2^3520003700 is an apocalyptic number.

It is an amenable number.

3520003700 is an abundant number, since it is smaller than the sum of its proper divisors (4118404546).

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

3520003700 is a wasteful number, since it uses less digits than its factorization.

3520003700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35200051 (or 35200044 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 20.

The square root of 3520003700 is about 59329.6190785007. The cubic root of 3520003700 is about 1521.1815172939.

Adding to 3520003700 its reverse (73000253), we get a palindrome (3593003953).

The spelling of 3520003700 in words is "three billion, five hundred twenty million, three thousand, seven hundred".