3640930845 has 16 divisors (see below), whose sum is σ = 5905292352. Its totient is φ = 1915228800.

The previous prime is 3640930823. The next prime is 3640930849. The reversal of 3640930845 is 5480390463.

It is not a de Polignac number, because 3640930845 - 2⁶ = 3640930781 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3640930797 and 3640930806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640930849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1661431 + ... + 1663620.

It is an arithmetic number, because the mean of its divisors is an integer number (369080772).

Almost surely, 2^3640930845 is an apocalyptic number.

It is an amenable number.

3640930845 is a deficient number, since it is larger than the sum of its proper divisors (2264361507).

3640930845 is a wasteful number, since it uses less digits than its factorization.

3640930845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325132.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 3640930845 is about 60340.1263256881. The cubic root of 3640930845 is about 1538.4054509338.

The spelling of 3640930845 in words is "three billion, six hundred forty million, nine hundred thirty thousand, eight hundred forty-five".