728763400 has 48 divisors (see below), whose sum is σ = 1696476240. Its totient is φ = 291144000.

The previous prime is 728763317. The next prime is 728763421. The reversal of 728763400 is 4367827.

728763400 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 728763400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208467 + ... + 211933.

It is an arithmetic number, because the mean of its divisors is an integer number (35343255).

Almost surely, 2^728763400 is an apocalyptic number.

It is an amenable number.

728763400 is an abundant number, since it is smaller than the sum of its proper divisors (967712840).

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

728763400 is a wasteful number, since it uses less digits than its factorization.

728763400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534 (or 4525 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 728763400 is about 26995.6181629538. The cubic root of 728763400 is about 899.9026232094.

The spelling of 728763400 in words is "seven hundred twenty-eight million, seven hundred sixty-three thousand, four hundred".