3645952 has 20 divisors (see below), whose sum is σ = 7285806. Its totient is φ = 1822720.

The previous prime is 3645949. The next prime is 3645953. The reversal of 3645952 is 2595463.

It can be written as a sum of positive squares in only one way, i.e., 3625216 + 20736 = 1904^2 + 144^2 .

It is not an unprimeable number, because it can be changed into a prime (3645953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3049 + ... + 4072.

Almost surely, 2^3645952 is an apocalyptic number.

3645952 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3645952 is a deficient number, since it is larger than the sum of its proper divisors (3639854).

3645952 is an frugal number, since it uses more digits than its factorization.

3645952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7139 (or 7123 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

The square root of 3645952 is about 1909.4376135397. The cubic root of 3645952 is about 153.9112323647.

The spelling of 3645952 in words is "three million, six hundred forty-five thousand, nine hundred fifty-two".