728157370 has 16 divisors (see below), whose sum is σ = 1338571008. Its totient is φ = 285065680.

The previous prime is 728157359. The next prime is 728157377. The reversal of 728157370 is 73751827.

It is not an unprimeable number, because it can be changed into a prime (728157377) 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 7 ways as a sum of consecutive naturals, for example, 774166 + ... + 775105.

It is an arithmetic number, because the mean of its divisors is an integer number (83660688).

Almost surely, 2^728157370 is an apocalyptic number.

728157370 is a deficient number, since it is larger than the sum of its proper divisors (610413638).

728157370 is a wasteful number, since it uses less digits than its factorization.

728157370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549325.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 728157370 is about 26984.3912290050. The cubic root of 728157370 is about 899.6531049935.

The spelling of 728157370 in words is "seven hundred twenty-eight million, one hundred fifty-seven thousand, three hundred seventy".