3645022 has 16 divisors (see below), whose sum is σ = 5633712. Its totient is φ = 1768000.

The previous prime is 3645013. The next prime is 3645049. The reversal of 3645022 is 2205463.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3644984 and 3645002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14397 + ... + 14647.

It is an arithmetic number, because the mean of its divisors is an integer number (352107).

Almost surely, 2^3645022 is an apocalyptic number.

3645022 is a deficient number, since it is larger than the sum of its proper divisors (1988690).

3645022 is a wasteful number, since it uses less digits than its factorization.

3645022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 3645022 is about 1909.1940708058. The cubic root of 3645022 is about 153.8981448256.

The spelling of 3645022 in words is "three million, six hundred forty-five thousand, twenty-two".