3644430 has 64 divisors (see below), whose sum is σ = 9331200. Its totient is φ = 909440.

The previous prime is 3644423. The next prime is 3644437. The reversal of 3644430 is 344463.

3644430 = T₄₄ + T₄₅ + ... + T₂₇₉.

It is an interprime number because it is at equal distance from previous prime (3644423) and next prime (3644437).

It is a self number, because there is not a number n which added to its sum of digits gives 3644430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51295 + ... + 51365.

It is an arithmetic number, because the mean of its divisors is an integer number (145800).

Almost surely, 2^3644430 is an apocalyptic number.

3644430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3644430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4665600).

3644430 is an abundant number, since it is smaller than the sum of its proper divisors (5686770).

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

3644430 is a wasteful number, since it uses less digits than its factorization.

3644430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 3644430 is about 1909.0390252690. The cubic root of 3644430 is about 153.8898126733.

Adding to 3644430 its reverse (344463), we get a palindrome (3988893).

The spelling of 3644430 in words is "three million, six hundred forty-four thousand, four hundred thirty".