244909906 has 4 divisors (see below), whose sum is σ = 367364862. Its totient is φ = 122454952.

The previous prime is 244909891. The next prime is 244909909. The reversal of 244909906 is 609909442.

244909906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 238980681 + 5929225 = 15459^2 + 2435^2 .

It is not an unprimeable number, because it can be changed into a prime (244909909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61227475 + ... + 61227478.

Almost surely, 2^244909906 is an apocalyptic number.

244909906 is a deficient number, since it is larger than the sum of its proper divisors (122454956).

244909906 is a wasteful number, since it uses less digits than its factorization.

244909906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122454955.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 244909906 is about 15649.5976306102. The cubic root of 244909906 is about 625.6557648353.

The spelling of 244909906 in words is "two hundred forty-four million, nine hundred nine thousand, nine hundred six".