728672246 has 16 divisors (see below), whose sum is σ = 1141154784. Its totient is φ = 348304704.

The previous prime is 728672239. The next prime is 728672257. The reversal of 728672246 is 642276827.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 728672197 and 728672206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117356 + ... + 123408.

It is an arithmetic number, because the mean of its divisors is an integer number (71322174).

Almost surely, 2^728672246 is an apocalyptic number.

728672246 is a deficient number, since it is larger than the sum of its proper divisors (412482538).

728672246 is a wasteful number, since it uses less digits than its factorization.

728672246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8695.

The product of its digits is 451584, while the sum is 44.

The square root of 728672246 is about 26993.9297991234. The cubic root of 728672246 is about 899.8651015922.

The spelling of 728672246 in words is "seven hundred twenty-eight million, six hundred seventy-two thousand, two hundred forty-six".