3605720434 has 16 divisors (see below), whose sum is σ = 5765175000. Its totient is φ = 1685419264.

The previous prime is 3605720413. The next prime is 3605720473. The reversal of 3605720434 is 4340275063.

It can be written as a sum of positive squares in 4 ways, for example, as 3223400625 + 382319809 = 56775^2 + 19553^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 3605720434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350809 + ... + 360940.

Almost surely, 2^3605720434 is an apocalyptic number.

3605720434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3605720434 is a deficient number, since it is larger than the sum of its proper divisors (2159454566).

3605720434 is a wasteful number, since it uses less digits than its factorization.

3605720434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711917.

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 3605720434 is about 60047.6513612314. The cubic root of 3605720434 is about 1533.4302171402.

3605720434 divided by its sum of digits (34) gives a palindrome (106050601).

Adding to 3605720434 its reverse (4340275063), we get a palindrome (7945995497).

The spelling of 3605720434 in words is "three billion, six hundred five million, seven hundred twenty thousand, four hundred thirty-four".