244140626 has 8 divisors (see below), whose sum is σ = 367381884. Its totient is φ = 121680000.

The previous prime is 244140613. The next prime is 244140683. The reversal of 244140626 is 626041442.

It is a happy number.

244140626 is nontrivially palindromic in base 5.

It is a Cunningham number, because it is equal to 5¹²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 244140625 + 1 = 15625^2 + 1^2 .

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 194375 + ... + 195626.

Almost surely, 2^244140626 is an apocalyptic number.

244140626 is a deficient number, since it is larger than the sum of its proper divisors (123241258).

244140626 is a wasteful number, since it uses less digits than its factorization.

244140626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390316.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 244140626 is about 15625.0000320000. Note that the first 4 decimals coincide. The cubic root of 244140626 is about 625.0000008533. Note that the first 6 decimals are identical.

The spelling of 244140626 in words is "two hundred forty-four million, one hundred forty thousand, six hundred twenty-six".