244401493 has 4 divisors (see below), whose sum is σ = 279316000. Its totient is φ = 209486988.

The previous prime is 244401481. The next prime is 244401529. The reversal of 244401493 is 394104442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 394104442 = 2 ⋅197052221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244401493 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 (244401403) by changing a digit.

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, 17457243 + ... + 17457256.

It is an arithmetic number, because the mean of its divisors is an integer number (69829000).

Almost surely, 2^244401493 is an apocalyptic number.

It is an amenable number.

244401493 is a deficient number, since it is larger than the sum of its proper divisors (34914507).

244401493 is an equidigital number, since it uses as much as digits as its factorization.

244401493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34914506.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 244401493 is about 15633.3455472589. The cubic root of 244401493 is about 625.2225281206. Note that the first 3 decimals are identical.

The spelling of 244401493 in words is "two hundred forty-four million, four hundred one thousand, four hundred ninety-three".