3948421930 has 8 divisors (see below), whose sum is σ = 7107159492. Its totient is φ = 1579368768.

The previous prime is 3948421909. The next prime is 3948421933. The reversal of 3948421930 is 391248493.

It can be written as a sum of positive squares in 2 ways, for example, as 3946729329 + 1692601 = 62823^2 + 1301^2 .

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 (3948421933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197421087 + ... + 197421106.

Almost surely, 2^3948421930 is an apocalyptic number.

3948421930 is a deficient number, since it is larger than the sum of its proper divisors (3158737562).

3948421930 is a wasteful number, since it uses less digits than its factorization.

3948421930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394842200.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 3948421930 is about 62836.4697448862. The cubic root of 3948421930 is about 1580.5485904135.

The spelling of 3948421930 in words is "three billion, nine hundred forty-eight million, four hundred twenty-one thousand, nine hundred thirty".