3630945 has 32 divisors (see below), whose sum is σ = 6376320. Its totient is φ = 1756160.

The previous prime is 3630943. The next prime is 3630953. The reversal of 3630945 is 5490363.

It is a happy number.

It is not a de Polignac number, because 3630945 - 2¹ = 3630943 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (3630943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7150 + ... + 7640.

It is an arithmetic number, because the mean of its divisors is an integer number (199260).

Almost surely, 2^3630945 is an apocalyptic number.

It is an amenable number.

3630945 is a deficient number, since it is larger than the sum of its proper divisors (2745375).

3630945 is a wasteful number, since it uses less digits than its factorization.

3630945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 3630945 is about 1905.5038703713. The cubic root of 3630945 is about 153.6997720787.

The spelling of 3630945 in words is "three million, six hundred thirty thousand, nine hundred forty-five".