4406345644 has 12 divisors (see below), whose sum is σ = 7711740064. Its totient is φ = 2202991344.

The previous prime is 4406345621. The next prime is 4406345653. The reversal of 4406345644 is 4465436044.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4406345597 and 4406345606.

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, 19597 + ... + 95899.

Almost surely, 2^4406345644 is an apocalyptic number.

It is an amenable number.

4406345644 is a deficient number, since it is larger than the sum of its proper divisors (3305394420).

4406345644 is a wasteful number, since it uses less digits than its factorization.

4406345644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90744 (or 90742 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 40.

The square root of 4406345644 is about 66380.3106651362. The cubic root of 4406345644 is about 1639.4299084329.

The spelling of 4406345644 in words is "four billion, four hundred six million, three hundred forty-five thousand, six hundred forty-four".