244647493 has 4 divisors (see below), whose sum is σ = 259038540. Its totient is φ = 230256448.

The previous prime is 244647461. The next prime is 244647497. The reversal of 244647493 is 394746442.

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

It can be written as a sum of positive squares in 2 ways, for example, as 79602084 + 165045409 = 8922^2 + 12847^2 .

It is a cyclic number.

It is not a de Polignac number, because 244647493 - 2⁵ = 244647461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244647497) 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, 7195498 + ... + 7195531.

It is an arithmetic number, because the mean of its divisors is an integer number (64759635).

Almost surely, 2^244647493 is an apocalyptic number.

It is an amenable number.

244647493 is a deficient number, since it is larger than the sum of its proper divisors (14391047).

244647493 is a wasteful number, since it uses less digits than its factorization.

244647493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14391046.

The product of its digits is 580608, while the sum is 43.

The square root of 244647493 is about 15641.2113661315. The cubic root of 244647493 is about 625.4322283769.

The spelling of 244647493 in words is "two hundred forty-four million, six hundred forty-seven thousand, four hundred ninety-three".