3946354278 has 32 divisors (see below), whose sum is σ = 8195320800. Its totient is φ = 1265354496.

The previous prime is 3946354273. The next prime is 3946354289. The reversal of 3946354278 is 8724536493.

It is a self number, because there is not a number n which added to its sum of digits gives 3946354278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3946354273) 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 15 ways as a sum of consecutive naturals, for example, 4650 + ... + 88962.

It is an arithmetic number, because the mean of its divisors is an integer number (256103775).

Almost surely, 2^3946354278 is an apocalyptic number.

3946354278 is an abundant number, since it is smaller than the sum of its proper divisors (4248966522).

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

3946354278 is a wasteful number, since it uses less digits than its factorization.

3946354278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84616.

The product of its digits is 4354560, while the sum is 51.

The square root of 3946354278 is about 62820.0149474672. The cubic root of 3946354278 is about 1580.2726493643.

The spelling of 3946354278 in words is "three billion, nine hundred forty-six million, three hundred fifty-four thousand, two hundred seventy-eight".