244540146 has 16 divisors (see below), whose sum is σ = 514821600. Its totient is φ = 77223168.

The previous prime is 244540139. The next prime is 244540147. The reversal of 244540146 is 641045442.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (244540147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072431 + ... + 1072658.

It is an arithmetic number, because the mean of its divisors is an integer number (32176350).

Almost surely, 2^244540146 is an apocalyptic number.

244540146 is an abundant number, since it is smaller than the sum of its proper divisors (270281454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

244540146 is a wasteful number, since it uses less digits than its factorization.

244540146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145113.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 244540146 is about 15637.7794459444. The cubic root of 244540146 is about 625.3407387882.

Adding to 244540146 its reverse (641045442), we get a palindrome (885585588).

The spelling of 244540146 in words is "two hundred forty-four million, five hundred forty thousand, one hundred forty-six".