3944307970 has 16 divisors (see below), whose sum is σ = 7106781240. Its totient is φ = 1576161664.

The previous prime is 3944307959. The next prime is 3944307979. The reversal of 3944307970 is 797034493.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2121615721 + 1822692249 = 46061^2 + 42693^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3944307970.

It is not an unprimeable number, because it can be changed into a prime (3944307979) 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, 184555 + ... + 204814.

Almost surely, 2^3944307970 is an apocalyptic number.

3944307970 is a deficient number, since it is larger than the sum of its proper divisors (3162473270).

3944307970 is a wasteful number, since it uses less digits than its factorization.

3944307970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390389.

The product of its (nonzero) digits is 571536, while the sum is 46.

The square root of 3944307970 is about 62803.7257652761. The cubic root of 3944307970 is about 1579.9994618916. Note that the first 3 decimals are identical.

The spelling of 3944307970 in words is "three billion, nine hundred forty-four million, three hundred seven thousand, nine hundred seventy".