3644900 has 72 divisors (see below), whose sum is σ = 9332736. Its totient is φ = 1209600.

The previous prime is 3644899. The next prime is 3644947. The reversal of 3644900 is 94463.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3644900.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28637 + ... + 28763.

Almost surely, 2^3644900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3644900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4666368).

3644900 is an abundant number, since it is smaller than the sum of its proper divisors (5687836).

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

3644900 is a wasteful number, since it uses less digits than its factorization.

3644900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 3644900 is about 1909.1621198840. The cubic root of 3644900 is about 153.8964278004.

The spelling of 3644900 in words is "three million, six hundred forty-four thousand, nine hundred".