3644332025 has 6 divisors (see below), whose sum is σ = 4518971742. Its totient is φ = 2915465600.

The previous prime is 3644331979. The next prime is 3644332033. The reversal of 3644332025 is 5202334463.

It can be written as a sum of positive squares in 3 ways, for example, as 854802169 + 2789529856 = 29237^2 + 52816^2 .

It is not a de Polignac number, because 3644332025 - 2⁶ = 3644331961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3644331982 and 3644332000.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72886616 + ... + 72886665.

It is an arithmetic number, because the mean of its divisors is an integer number (753161957).

Almost surely, 2^3644332025 is an apocalyptic number.

It is an amenable number.

3644332025 is a deficient number, since it is larger than the sum of its proper divisors (874639717).

3644332025 is a wasteful number, since it uses less digits than its factorization.

3644332025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145773291 (or 145773286 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 32.

The square root of 3644332025 is about 60368.3031482582. The cubic root of 3644332025 is about 1538.8843362918.

Adding to 3644332025 its reverse (5202334463), we get a palindrome (8846666488).

The spelling of 3644332025 in words is "three billion, six hundred forty-four million, three hundred thirty-two thousand, twenty-five".