1724244389 has 12 divisors (see below), whose sum is σ = 2043601164. Its totient is φ = 1450036224.

The previous prime is 1724244371. The next prime is 1724244409. The reversal of 1724244389 is 9834424271.

It can be written as a sum of positive squares in 2 ways, for example, as 937890625 + 786353764 = 30625^2 + 28042^2 .

It is not a de Polignac number, because 1724244389 - 2⁸ = 1724244133 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 (1724244089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 329372 + ... + 334565.

It is an arithmetic number, because the mean of its divisors is an integer number (170300097).

Almost surely, 2^1724244389 is an apocalyptic number.

It is an amenable number.

1724244389 is a deficient number, since it is larger than the sum of its proper divisors (319356775).

1724244389 is an equidigital number, since it uses as much as digits as its factorization.

1724244389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664004 (or 663997 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 1724244389 is about 41524.0218307427. The cubic root of 1724244389 is about 1199.1300150261.

The spelling of 1724244389 in words is "one billion, seven hundred twenty-four million, two hundred forty-four thousand, three hundred eighty-nine".