3645194 has 16 divisors (see below), whose sum is σ = 6326208. Its totient is φ = 1542912.

The previous prime is 3645193. The next prime is 3645227. The reversal of 3645194 is 4915463.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3645194.

It is not an unprimeable number, because it can be changed into a prime (3645193) 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 7 ways as a sum of consecutive naturals, for example, 407 + ... + 2730.

It is an arithmetic number, because the mean of its divisors is an integer number (395388).

Almost surely, 2^3645194 is an apocalyptic number.

3645194 is a deficient number, since it is larger than the sum of its proper divisors (2681014).

3645194 is a wasteful number, since it uses less digits than its factorization.

3645194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229.

The product of its digits is 12960, while the sum is 32.

The square root of 3645194 is about 1909.2391154593. The cubic root of 3645194 is about 153.9005654844.

The spelling of 3645194 in words is "three million, six hundred forty-five thousand, one hundred ninety-four".