3930378052 has 6 divisors (see below), whose sum is σ = 6878161598. Its totient is φ = 1965189024.

The previous prime is 3930378037. The next prime is 3930378061. The reversal of 3930378052 is 2508730393.

It can be written as a sum of positive squares in only one way, i.e., 3183667776 + 746710276 = 56424^2 + 27326^2 .

It is a super-3 number, since 3×3930378052³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3930377996 and 3930378014.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491297253 + ... + 491297260.

Almost surely, 2^3930378052 is an apocalyptic number.

It is an amenable number.

3930378052 is a deficient number, since it is larger than the sum of its proper divisors (2947783546).

3930378052 is a wasteful number, since it uses less digits than its factorization.

3930378052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982594517 (or 982594515 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 3930378052 is about 62692.7272656087. The cubic root of 3930378052 is about 1578.1372658914.

The spelling of 3930378052 in words is "three billion, nine hundred thirty million, three hundred seventy-eight thousand, fifty-two".