3644269356 has 240 divisors, whose sum is σ = 11089254400. Its totient is φ = 930121920.

The previous prime is 3644269333. The next prime is 3644269367. The reversal of 3644269356 is 6539624463.

3644269356 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 117557061 + ... + 117557091.

Almost surely, 2^3644269356 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 3644269356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5544627200).

3644269356 is an abundant number, since it is smaller than the sum of its proper divisors (7444985044).

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

3644269356 is an equidigital number, since it uses as much as digits as its factorization.

3644269356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 56 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 48.

The square root of 3644269356 is about 60367.7840905230. The cubic root of 3644269356 is about 1538.8755152061.

The spelling of 3644269356 in words is "three billion, six hundred forty-four million, two hundred sixty-nine thousand, three hundred fifty-six".