3644066446 has 8 divisors (see below), whose sum is σ = 5466659184. Its totient is φ = 1821846720.

The previous prime is 3644066423. The next prime is 3644066453. The reversal of 3644066446 is 6446604463.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67395 + ... + 108766.

It is an arithmetic number, because the mean of its divisors is an integer number (683332398).

Almost surely, 2^3644066446 is an apocalyptic number.

3644066446 is a deficient number, since it is larger than the sum of its proper divisors (1822592738).

3644066446 is a wasteful number, since it uses less digits than its factorization.

3644066446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186506.

The product of its (nonzero) digits is 995328, while the sum is 43.

The square root of 3644066446 is about 60366.1034521858. The cubic root of 3644066446 is about 1538.8469535572.

The spelling of 3644066446 in words is "three billion, six hundred forty-four million, sixty-six thousand, four hundred forty-six".