3645372236 has 12 divisors (see below), whose sum is σ = 6959347080. Its totient is φ = 1656987360.

The previous prime is 3645372233. The next prime is 3645372259. The reversal of 3645372236 is 6322735463.

It is a junction number, because it is equal to n+sod(n) for n = 3645372193 and 3645372202.

It is not an unprimeable number, because it can be changed into a prime (3645372233) 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 3 ways as a sum of consecutive naturals, for example, 41424641 + ... + 41424728.

It is an arithmetic number, because the mean of its divisors is an integer number (579945590).

Almost surely, 2^3645372236 is an apocalyptic number.

It is an amenable number.

3645372236 is a deficient number, since it is larger than the sum of its proper divisors (3313974844).

3645372236 is a wasteful number, since it uses less digits than its factorization.

3645372236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82849384 (or 82849382 counting only the distinct ones).

The product of its digits is 544320, while the sum is 41.

The square root of 3645372236 is about 60376.9180730517. The cubic root of 3645372236 is about 1539.0307382593.

The spelling of 3645372236 in words is "three billion, six hundred forty-five million, three hundred seventy-two thousand, two hundred thirty-six".