729242 has 4 divisors (see below), whose sum is σ = 1093866. Its totient is φ = 364620.

The previous prime is 729217. The next prime is 729257. The reversal of 729242 is 242927.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 724201 + 5041 = 851^2 + 71^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 729242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182309 + ... + 182312.

2⁷²⁹²⁴² is an apocalyptic number.

729242 is a deficient number, since it is larger than the sum of its proper divisors (364624).

729242 is a wasteful number, since it uses less digits than its factorization.

729242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364623.

The product of its digits is 2016, while the sum is 26.

The square root of 729242 is about 853.9566733740. The cubic root of 729242 is about 90.0099577460.

The spelling of 729242 in words is "seven hundred twenty-nine thousand, two hundred forty-two".