3920219906 has 8 divisors (see below), whose sum is σ = 5903758224. Its totient is φ = 1952300500.

The previous prime is 3920219899. The next prime is 3920219911. The reversal of 3920219906 is 6099120293.

3920219906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3920219906² = 30736248222797297672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3904100 + ... + 3905103.

It is an arithmetic number, because the mean of its divisors is an integer number (737969778).

Almost surely, 2^3920219906 is an apocalyptic number.

3920219906 is a deficient number, since it is larger than the sum of its proper divisors (1983538318).

3920219906 is a wasteful number, since it uses less digits than its factorization.

3920219906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7809456.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 3920219906 is about 62611.6595052391. The cubic root of 3920219906 is about 1576.7765164348.

The spelling of 3920219906 in words is "three billion, nine hundred twenty million, two hundred nineteen thousand, nine hundred six".