3645320774 has 4 divisors (see below), whose sum is σ = 5467981164. Its totient is φ = 1822660386.

The previous prime is 3645320711. The next prime is 3645320801. The reversal of 3645320774 is 4770235463.

3645320774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×3645320774³ (a number of 30 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911330192 + ... + 911330195.

It is an arithmetic number, because the mean of its divisors is an integer number (1366995291).

Almost surely, 2^3645320774 is an apocalyptic number.

3645320774 is a deficient number, since it is larger than the sum of its proper divisors (1822660390).

3645320774 is a wasteful number, since it uses less digits than its factorization.

3645320774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822660389.

The product of its (nonzero) digits is 423360, while the sum is 41.

The square root of 3645320774 is about 60376.4918987515. The cubic root of 3645320774 is about 1539.0234960201.

The spelling of 3645320774 in words is "three billion, six hundred forty-five million, three hundred twenty thousand, seven hundred seventy-four".