3506440645 has 8 divisors (see below), whose sum is σ = 4270531104. Its totient is φ = 2763284304.

The previous prime is 3506440631. The next prime is 3506440649. The reversal of 3506440645 is 5460446053.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3506440645 - 2¹¹ = 3506438597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506440649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5233159 + ... + 5233828.

It is an arithmetic number, because the mean of its divisors is an integer number (533816388).

Almost surely, 2^3506440645 is an apocalyptic number.

It is an amenable number.

3506440645 is a deficient number, since it is larger than the sum of its proper divisors (764090459).

3506440645 is a wasteful number, since it uses less digits than its factorization.

3506440645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10467059.

The product of its (nonzero) digits is 172800, while the sum is 37.

The square root of 3506440645 is about 59215.2061973949. The cubic root of 3506440645 is about 1519.2252291428.

Adding to 3506440645 its reverse (5460446053), we get a palindrome (8966886698).

The spelling of 3506440645 in words is "three billion, five hundred six million, four hundred forty thousand, six hundred forty-five".