728708030 has 16 divisors (see below), whose sum is σ = 1313732304. Its totient is φ = 291025920.

The previous prime is 728708021. The next prime is 728708033. The reversal of 728708030 is 30807827.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728708033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50432 + ... + 63251.

It is an arithmetic number, because the mean of its divisors is an integer number (82108269).

Almost surely, 2^728708030 is an apocalyptic number.

728708030 is a deficient number, since it is larger than the sum of its proper divisors (585024274).

728708030 is a wasteful number, since it uses less digits than its factorization.

728708030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114331.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 728708030 is about 26994.5926066685. The cubic root of 728708030 is about 899.8798316924.

The spelling of 728708030 in words is "seven hundred twenty-eight million, seven hundred eight thousand, thirty".