3809044646 has 32 divisors (see below), whose sum is σ = 6565432320. Its totient is φ = 1639159200.

The previous prime is 3809044609. The next prime is 3809044649. The reversal of 3809044646 is 6464409083.

It is a super-2 number, since 2×3809044646² = 29017642230442530632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3809044597 and 3809044606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3809044649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1081280 + ... + 1084796.

It is an arithmetic number, because the mean of its divisors is an integer number (205169760).

Almost surely, 2^3809044646 is an apocalyptic number.

3809044646 is a deficient number, since it is larger than the sum of its proper divisors (2756387674).

3809044646 is a wasteful number, since it uses less digits than its factorization.

3809044646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6140.

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 3809044646 is about 61717.4581945822. The cubic root of 3809044646 is about 1561.7278474829.

The spelling of 3809044646 in words is "three billion, eight hundred nine million, forty-four thousand, six hundred forty-six".