244666442 has 4 divisors (see below), whose sum is σ = 366999666. Its totient is φ = 122333220.

The previous prime is 244666403. The next prime is 244666481.

244666442 is nontrivially palindromic in base 10.

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

It is an interprime number because it is at equal distance from previous prime (244666403) and next prime (244666481).

It can be written as a sum of positive squares in only one way, i.e., 239599441 + 5067001 = 15479^2 + 2251^2 .

It is a junction number, because it is equal to n+sod(n) for n = 244666396 and 244666405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61166609 + ... + 61166612.

Almost surely, 2^244666442 is an apocalyptic number.

244666442 is a deficient number, since it is larger than the sum of its proper divisors (122333224).

244666442 is a wasteful number, since it uses less digits than its factorization.

244666442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122333223.

The product of its digits is 221184, while the sum is 38.

The square root of 244666442 is about 15641.8170939313. The cubic root of 244666442 is about 625.4483754316.

The spelling of 244666442 in words is "two hundred forty-four million, six hundred sixty-six thousand, four hundred forty-two".