3645430 has 8 divisors (see below), whose sum is σ = 6561792. Its totient is φ = 1458168.

The previous prime is 3645419. The next prime is 3645449. The reversal of 3645430 is 345463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3645395 and 3645404.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 182262 + ... + 182281.

It is an arithmetic number, because the mean of its divisors is an integer number (820224).

Almost surely, 2^3645430 is an apocalyptic number.

3645430 is a deficient number, since it is larger than the sum of its proper divisors (2916362).

3645430 is a wasteful number, since it uses less digits than its factorization.

3645430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364550.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 3645430 is about 1909.3009191848. The cubic root of 3645430 is about 153.9038867297.

The spelling of 3645430 in words is "three million, six hundred forty-five thousand, four hundred thirty".