3645338408 has 8 divisors (see below), whose sum is σ = 6835009530. Its totient is φ = 1822669200.

The previous prime is 3645338393. The next prime is 3645338449. The reversal of 3645338408 is 8048335463.

3645338408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2948272804 + 697065604 = 54298^2 + 26402^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227833643 + ... + 227833658.

Almost surely, 2^3645338408 is an apocalyptic number.

It is an amenable number.

3645338408 is a deficient number, since it is larger than the sum of its proper divisors (3189671122).

3645338408 is a wasteful number, since it uses less digits than its factorization.

3645338408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455667307 (or 455667303 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The square root of 3645338408 is about 60376.6379322334. The cubic root of 3645338408 is about 1539.0259776578.

The spelling of 3645338408 in words is "three billion, six hundred forty-five million, three hundred thirty-eight thousand, four hundred eight".