728103242 has 16 divisors (see below), whose sum is σ = 1125534312. Its totient is φ = 352992960.

The previous prime is 728103163. The next prime is 728103253. The reversal of 728103242 is 242301827.

It can be written as a sum of positive squares in 4 ways, for example, as 684397921 + 43705321 = 26161^2 + 6611^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4892 + ... + 38472.

Almost surely, 2^728103242 is an apocalyptic number.

728103242 is a deficient number, since it is larger than the sum of its proper divisors (397431070).

728103242 is a wasteful number, since it uses less digits than its factorization.

728103242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33913.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 728103242 is about 26983.3882601870. The cubic root of 728103242 is about 899.6308123628.

The spelling of 728103242 in words is "seven hundred twenty-eight million, one hundred three thousand, two hundred forty-two".