728053378 has 16 divisors (see below), whose sum is σ = 1178094456. Its totient is φ = 335450880.

The previous prime is 728053351. The next prime is 728053379. The reversal of 728053378 is 873350827.

It can be written as a sum of positive squares in 4 ways, for example, as 433347489 + 294705889 = 20817^2 + 17167^2 .

It is not an unprimeable number, because it can be changed into a prime (728053379) 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, 8193 + ... + 39028.

Almost surely, 2^728053378 is an apocalyptic number.

728053378 is a deficient number, since it is larger than the sum of its proper divisors (450041078).

728053378 is a wasteful number, since it uses less digits than its factorization.

728053378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47829.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 728053378 is about 26982.4642684837. The cubic root of 728053378 is about 899.6102748839.

The spelling of 728053378 in words is "seven hundred twenty-eight million, fifty-three thousand, three hundred seventy-eight".