3634018646 has 4 divisors (see below), whose sum is σ = 5451027972. Its totient is φ = 1817009322.

The previous prime is 3634018639. The next prime is 3634018649. The reversal of 3634018646 is 6468104363.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3634018649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 908504660 + ... + 908504663.

It is an arithmetic number, because the mean of its divisors is an integer number (1362756993).

Almost surely, 2^3634018646 is an apocalyptic number.

3634018646 is a deficient number, since it is larger than the sum of its proper divisors (1817009326).

3634018646 is a wasteful number, since it uses less digits than its factorization.

3634018646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817009325.

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 3634018646 is about 60282.8221469433. The cubic root of 3634018646 is about 1537.4312951959.

The spelling of 3634018646 in words is "three billion, six hundred thirty-four million, eighteen thousand, six hundred forty-six".