828280642 has 16 divisors (see below), whose sum is σ = 1494642240. Its totient is φ = 336294288.

The previous prime is 828280639. The next prime is 828280657. The reversal of 828280642 is 246082828.

828280642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 828280595 and 828280604.

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, 1556653 + ... + 1557184.

It is an arithmetic number, because the mean of its divisors is an integer number (93415140).

Almost surely, 2^828280642 is an apocalyptic number.

828280642 is a deficient number, since it is larger than the sum of its proper divisors (666361598).

828280642 is a wasteful number, since it uses less digits than its factorization.

828280642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113865.

The product of its (nonzero) digits is 98304, while the sum is 40.

The square root of 828280642 is about 28779.8652185864. The cubic root of 828280642 is about 939.1302661482.

The spelling of 828280642 in words is "eight hundred twenty-eight million, two hundred eighty thousand, six hundred forty-two".