3946472618 has 32 divisors (see below), whose sum is σ = 6759286272. Its totient is φ = 1710601200.

The previous prime is 3946472611. The next prime is 3946472657. The reversal of 3946472618 is 8162746493.

It is a super-2 number, since 2×3946472618² = 31149292249247547848, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3946472611) 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, 155705 + ... + 179267.

It is an arithmetic number, because the mean of its divisors is an integer number (211227696).

Almost surely, 2^3946472618 is an apocalyptic number.

3946472618 is a deficient number, since it is larger than the sum of its proper divisors (2812813654).

3946472618 is a wasteful number, since it uses less digits than its factorization.

3946472618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23930.

The product of its digits is 1741824, while the sum is 50.

The square root of 3946472618 is about 62820.9568376668. The cubic root of 3946472618 is about 1580.2884451751.

The spelling of 3946472618 in words is "three billion, nine hundred forty-six million, four hundred seventy-two thousand, six hundred eighteen".