3994764012 has 18 divisors (see below), whose sum is σ = 10097875788. Its totient is φ = 1331587992.

The previous prime is 3994763977. The next prime is 3994764031. The reversal of 3994764012 is 2104674993.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×3994764012² = 31916279023140672288, which contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 55482798 + ... + 55482869.

Almost surely, 2^3994764012 is an apocalyptic number.

It is an amenable number.

3994764012 is an abundant number, since it is smaller than the sum of its proper divisors (6103111776).

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

3994764012 is a wasteful number, since it uses less digits than its factorization.

3994764012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110965677 (or 110965672 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 3994764012 is about 63204.1455285965. The cubic root of 3994764012 is about 1586.7081151245.

The spelling of 3994764012 in words is "three billion, nine hundred ninety-four million, seven hundred sixty-four thousand, twelve".