3645412 has 12 divisors (see below), whose sum is σ = 6754860. Its totient is φ = 1715456.

The previous prime is 3645409. The next prime is 3645419. The reversal of 3645412 is 2145463.

It can be written as a sum of positive squares in 2 ways, for example, as 1136356 + 2509056 = 1066^2 + 1584^2 .

It is not an unprimeable number, because it can be changed into a prime (3645419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26737 + ... + 26872.

It is an arithmetic number, because the mean of its divisors is an integer number (562905).

Almost surely, 2^3645412 is an apocalyptic number.

It is an amenable number.

3645412 is a deficient number, since it is larger than the sum of its proper divisors (3109448).

3645412 is a wasteful number, since it uses less digits than its factorization.

3645412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53630 (or 53628 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 3645412 is about 1909.2962054118. The cubic root of 3645412 is about 153.9036334194.

It can be divided in two parts, 364 and 5412, that added together give a square (5776 = 76²).

The spelling of 3645412 in words is "three million, six hundred forty-five thousand, four hundred twelve".