3946450378 has 16 divisors (see below), whose sum is σ = 6376527360. Its totient is φ = 1821012336.

The previous prime is 3946450373. The next prime is 3946450379. The reversal of 3946450378 is 8730546493.

It is not an unprimeable number, because it can be changed into a prime (3946450373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113863 + ... + 144421.

It is an arithmetic number, because the mean of its divisors is an integer number (398532960).

Almost surely, 2^3946450378 is an apocalyptic number.

3946450378 is a deficient number, since it is larger than the sum of its proper divisors (2430076982).

3946450378 is a wasteful number, since it uses less digits than its factorization.

3946450378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35541.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The square root of 3946450378 is about 62820.7798264237. The cubic root of 3946450378 is about 1580.2854766439.

The spelling of 3946450378 in words is "three billion, nine hundred forty-six million, four hundred fifty thousand, three hundred seventy-eight".