3909445930 has 32 divisors (see below), whose sum is σ = 7907808384. Its totient is φ = 1380726336.

The previous prime is 3909445927. The next prime is 3909445931. The reversal of 3909445930 is 395449093.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (3909445931) 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, 650764 + ... + 656743.

It is an arithmetic number, because the mean of its divisors is an integer number (247119012).

Almost surely, 2^3909445930 is an apocalyptic number.

3909445930 is an abundant number, since it is smaller than the sum of its proper divisors (3998362454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3909445930 is a wasteful number, since it uses less digits than its factorization.

3909445930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307550.

The product of its (nonzero) digits is 524880, while the sum is 46.

The square root of 3909445930 is about 62525.5622125863. The cubic root of 3909445930 is about 1575.3307013652.

The spelling of 3909445930 in words is "three billion, nine hundred nine million, four hundred forty-five thousand, nine hundred thirty".