10219906 has 8 divisors (see below), whose sum is σ = 15703884. Its totient is φ = 4985280.

The previous prime is 10219903. The next prime is 10219933. The reversal of 10219906 is 60991201.

10219906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10208025 + 11881 = 3195^2 + 109^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10219903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62235 + ... + 62398.

Almost surely, 2^10219906 is an apocalyptic number.

10219906 is a deficient number, since it is larger than the sum of its proper divisors (5483978).

10219906 is a wasteful number, since it uses less digits than its factorization.

10219906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124676.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 10219906 is about 3196.8587707310. The cubic root of 10219906 is about 217.0112759330.

The spelling of 10219906 in words is "ten million, two hundred nineteen thousand, nine hundred six".