244866387 has 4 divisors (see below), whose sum is σ = 326488520. Its totient is φ = 163244256.

The previous prime is 244866371. The next prime is 244866389. The reversal of 244866387 is 783668442.

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

It is not a de Polignac number, because 244866387 - 2⁴ = 244866371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244866389) 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, 40811062 + ... + 40811067.

It is an arithmetic number, because the mean of its divisors is an integer number (81622130).

Almost surely, 2^244866387 is an apocalyptic number.

244866387 is a deficient number, since it is larger than the sum of its proper divisors (81622133).

244866387 is an equidigital number, since it uses as much as digits as its factorization.

244866387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81622132.

The product of its digits is 1548288, while the sum is 48.

The square root of 244866387 is about 15648.2071497025. The cubic root of 244866387 is about 625.6187042327.

The spelling of 244866387 in words is "two hundred forty-four million, eight hundred sixty-six thousand, three hundred eighty-seven".