3644740633 has 8 divisors (see below), whose sum is σ = 3734448480. Its totient is φ = 3555071520.

The previous prime is 3644740601. The next prime is 3644740639. The reversal of 3644740633 is 3360474463.

3644740633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3644740633 - 2⁵ = 3644740601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3644740639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303538 + ... + 315316.

It is an arithmetic number, because the mean of its divisors is an integer number (466806060).

Almost surely, 2^3644740633 is an apocalyptic number.

It is an amenable number.

3644740633 is a deficient number, since it is larger than the sum of its proper divisors (89707847).

3644740633 is a wasteful number, since it uses less digits than its factorization.

3644740633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19367.

The product of its (nonzero) digits is 435456, while the sum is 40.

The square root of 3644740633 is about 60371.6873459737. The cubic root of 3644740633 is about 1538.9418481529.

The spelling of 3644740633 in words is "three billion, six hundred forty-four million, seven hundred forty thousand, six hundred thirty-three".