728732370 has 32 divisors (see below), whose sum is σ = 1851838848. Its totient is φ = 182897408.

The previous prime is 728732357. The next prime is 728732371. The reversal of 728732370 is 73237827.

It is not an unprimeable number, because it can be changed into a prime (728732371) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 713934 + ... + 714953.

It is an arithmetic number, because the mean of its divisors is an integer number (57869964).

Almost surely, 2^728732370 is an apocalyptic number.

728732370 is an abundant number, since it is smaller than the sum of its proper divisors (1123106478).

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

728732370 is a wasteful number, since it uses less digits than its factorization.

728732370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428914.

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 728732370 is about 26995.0434339343. The cubic root of 728732370 is about 899.8898507171.

The spelling of 728732370 in words is "seven hundred twenty-eight million, seven hundred thirty-two thousand, three hundred seventy".