3656340245 has 16 divisors (see below), whose sum is σ = 4584408192. Its totient is φ = 2794207680.

The previous prime is 3656340241. The next prime is 3656340257. The reversal of 3656340245 is 5420436563.

It is a happy number.

It is not a de Polignac number, because 3656340245 - 2² = 3656340241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3656340199 and 3656340208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656340241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68330 + ... + 109460.

It is an arithmetic number, because the mean of its divisors is an integer number (286525512).

Almost surely, 2^3656340245 is an apocalyptic number.

It is an amenable number.

3656340245 is a deficient number, since it is larger than the sum of its proper divisors (928067947).

3656340245 is a wasteful number, since it uses less digits than its factorization.

3656340245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41932.

The product of its (nonzero) digits is 259200, while the sum is 38.

The square root of 3656340245 is about 60467.6793419427. The cubic root of 3656340245 is about 1540.5727117358.

The spelling of 3656340245 in words is "three billion, six hundred fifty-six million, three hundred forty thousand, two hundred forty-five".