3909930 has 48 divisors (see below), whose sum is σ = 9750240. Its totient is φ = 1003168.

The previous prime is 3909923. The next prime is 3909943. The reversal of 3909930 is 399093.

It is a junction number, because it is equal to n+sod(n) for n = 3909891 and 3909900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66241 + ... + 66299.

It is an arithmetic number, because the mean of its divisors is an integer number (203130).

Almost surely, 2^3909930 is an apocalyptic number.

3909930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3909930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4875120).

3909930 is an abundant number, since it is smaller than the sum of its proper divisors (5840310).

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

3909930 is a wasteful number, since it uses less digits than its factorization.

3909930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 6561, while the sum is 33.

The square root of 3909930 is about 1977.3542929885. The cubic root of 3909930 is about 157.5395718154.

The spelling of 3909930 in words is "three million, nine hundred nine thousand, nine hundred thirty".