3685904045 has 16 divisors (see below), whose sum is σ = 4686206400. Its totient is φ = 2773526784.

The previous prime is 3685904017. The next prime is 3685904083. The reversal of 3685904045 is 5404095863.

It is a cyclic number.

It is not a de Polignac number, because 3685904045 - 2⁶ = 3685903981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3685903987 and 3685904005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131654 + ... + 157176.

It is an arithmetic number, because the mean of its divisors is an integer number (292887900).

Almost surely, 2^3685904045 is an apocalyptic number.

It is an amenable number.

3685904045 is a deficient number, since it is larger than the sum of its proper divisors (1000302355).

3685904045 is a wasteful number, since it uses less digits than its factorization.

3685904045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27244.

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 3685904045 is about 60711.6466997890. The cubic root of 3685904045 is about 1544.7137357447.

The spelling of 3685904045 in words is "three billion, six hundred eighty-five million, nine hundred four thousand, forty-five".