1729038242 has 4 divisors (see below), whose sum is σ = 2593557366. Its totient is φ = 864519120.

The previous prime is 1729038217. The next prime is 1729038253. The reversal of 1729038242 is 2428309271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2428309271 = 197 ⋅12326443.

It can be written as a sum of positive squares in only one way, i.e., 1707425041 + 21613201 = 41321^2 + 4649^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1729038196 and 1729038205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432259559 + ... + 432259562.

Almost surely, 2^1729038242 is an apocalyptic number.

1729038242 is a deficient number, since it is larger than the sum of its proper divisors (864519124).

1729038242 is an equidigital number, since it uses as much as digits as its factorization.

1729038242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864519123.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 1729038242 is about 41581.7056167733. The cubic root of 1729038242 is about 1200.2402856787.

The spelling of 1729038242 in words is "one billion, seven hundred twenty-nine million, thirty-eight thousand, two hundred forty-two".