1729542 has 8 divisors (see below), whose sum is σ = 3459096. Its totient is φ = 576512.

The previous prime is 1729523. The next prime is 1729543. The reversal of 1729542 is 2459271.

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

1729542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1729543) 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, 144123 + ... + 144134.

It is an arithmetic number, because the mean of its divisors is an integer number (432387).

2^1729542 is an apocalyptic number.

1729542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1729542 is a wasteful number, since it uses less digits than its factorization.

1729542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288262.

The product of its digits is 5040, while the sum is 30.

The square root of 1729542 is about 1315.1205267959. The cubic root of 1729542 is about 120.0356838323.

The spelling of 1729542 in words is "one million, seven hundred twenty-nine thousand, five hundred forty-two".