3664020 has 48 divisors (see below), whose sum is σ = 10402560. Its totient is φ = 963456.

The previous prime is 3664013. The next prime is 3664033. The reversal of 3664020 is 204663.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4354 + ... + 5126.

It is an arithmetic number, because the mean of its divisors is an integer number (216720).

Almost surely, 2^3664020 is an apocalyptic number.

3664020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3664020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5201280).

3664020 is an abundant number, since it is smaller than the sum of its proper divisors (6738540).

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

3664020 is a wasteful number, since it uses less digits than its factorization.

3664020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3664020 is about 1914.1630024635. The cubic root of 3664020 is about 154.1650560663.

Adding to 3664020 its reverse (204663), we get a palindrome (3868683).

The spelling of 3664020 in words is "three million, six hundred sixty-four thousand, twenty".