3652644 has 24 divisors (see below), whose sum is σ = 8632960. Its totient is φ = 1201824.

The previous prime is 3652643. The next prime is 3652661. The reversal of 3652644 is 4462563.

It is a d-powerful number, because it can be written as 3⁷ + 6⁴ + 5⁹ + 2⁵ + 6⁸ + 4 + 4⁷ .

It is not an unprimeable number, because it can be changed into a prime (3652643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979 + ... + 2874.

Almost surely, 2^3652644 is an apocalyptic number.

It is an amenable number.

3652644 is an abundant number, since it is smaller than the sum of its proper divisors (4980316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3652644 is a wasteful number, since it uses less digits than its factorization.

3652644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939 (or 3937 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 3652644 is about 1911.1891586130. The cubic root of 3652644 is about 154.0053407941.

The spelling of 3652644 in words is "three million, six hundred fifty-two thousand, six hundred forty-four".