3909449722 has 8 divisors (see below), whose sum is σ = 5864546772. Its totient is φ = 1954600800.

The previous prime is 3909449683. The next prime is 3909449729. The reversal of 3909449722 is 2279449093.

It can be written as a sum of positive squares in 2 ways, for example, as 2684379721 + 1225070001 = 51811^2 + 35001^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3909449729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15729 + ... + 89812.

Almost surely, 2^3909449722 is an apocalyptic number.

3909449722 is a deficient number, since it is larger than the sum of its proper divisors (1955097050).

3909449722 is a wasteful number, since it uses less digits than its factorization.

3909449722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124064.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 3909449722 is about 62525.5925361767. The cubic root of 3909449722 is about 1575.3312107001.

The spelling of 3909449722 in words is "three billion, nine hundred nine million, four hundred forty-nine thousand, seven hundred twenty-two".