3645564446 has 16 divisors (see below), whose sum is σ = 5845277088. Its totient is φ = 1701004800.

The previous prime is 3645564427. The next prime is 3645564449. The reversal of 3645564446 is 6444655463.

It is a self number, because there is not a number n which added to its sum of digits gives 3645564446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645564449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964595 + ... + 968366.

It is an arithmetic number, because the mean of its divisors is an integer number (365329818).

Almost surely, 2^3645564446 is an apocalyptic number.

3645564446 is a deficient number, since it is larger than the sum of its proper divisors (2199712642).

3645564446 is a wasteful number, since it uses less digits than its factorization.

3645564446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933027.

The product of its digits is 4147200, while the sum is 47.

The square root of 3645564446 is about 60378.5098027436. The cubic root of 3645564446 is about 1539.0577873396.

The spelling of 3645564446 in words is "three billion, six hundred forty-five million, five hundred sixty-four thousand, four hundred forty-six".