1728297542 has 8 divisors (see below), whose sum is σ = 2595576000. Its totient is φ = 863105544.

The previous prime is 1728297539. The next prime is 1728297577. The reversal of 1728297542 is 2457928271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519542 + ... + 522857.

It is an arithmetic number, because the mean of its divisors is an integer number (324447000).

Almost surely, 2^1728297542 is an apocalyptic number.

1728297542 is a deficient number, since it is larger than the sum of its proper divisors (867278458).

1728297542 is a wasteful number, since it uses less digits than its factorization.

1728297542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043230.

The product of its digits is 564480, while the sum is 47.

The square root of 1728297542 is about 41572.7981016433. The cubic root of 1728297542 is about 1200.0688715101.

The spelling of 1728297542 in words is "one billion, seven hundred twenty-eight million, two hundred ninety-seven thousand, five hundred forty-two".