3645370 has 8 divisors (see below), whose sum is σ = 6561684. Its totient is φ = 1458144.

The previous prime is 3645349. The next prime is 3645371. The reversal of 3645370 is 735463.

It can be written as a sum of positive squares in 2 ways, for example, as 3644281 + 1089 = 1909^2 + 33^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3645371) 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, 182259 + ... + 182278.

Almost surely, 2^3645370 is an apocalyptic number.

3645370 is a deficient number, since it is larger than the sum of its proper divisors (2916314).

3645370 is a wasteful number, since it uses less digits than its factorization.

3645370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364544.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 3645370 is about 1909.2852065629. The cubic root of 3645370 is about 153.9030423589.

The spelling of 3645370 in words is "three million, six hundred forty-five thousand, three hundred seventy".