3948930 has 96 divisors (see below), whose sum is σ = 11372400. Its totient is φ = 946176.

The previous prime is 3948911. The next prime is 3948953. The reversal of 3948930 is 398493.

It can be written as a sum of positive squares in 8 ways, for example, as 1671849 + 2277081 = 1293^2 + 1509^2 .

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44326 + ... + 44414.

Almost surely, 2^3948930 is an apocalyptic number.

3948930 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 3948930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5686200).

3948930 is an abundant number, since it is smaller than the sum of its proper divisors (7423470).

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

3948930 is a wasteful number, since it uses less digits than its factorization.

3948930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 3948930 is about 1987.1914854890. The cubic root of 3948930 is about 158.0616380778.

The spelling of 3948930 in words is "three million, nine hundred forty-eight thousand, nine hundred thirty".