1028471278 has 8 divisors (see below), whose sum is σ = 1542967272. Its totient is φ = 514148856.

The previous prime is 1028471237. The next prime is 1028471299. The reversal of 1028471278 is 8721748201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1028471278.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27400 + ... + 52987.

It is an arithmetic number, because the mean of its divisors is an integer number (192870909).

Almost surely, 2^1028471278 is an apocalyptic number.

1028471278 is a deficient number, since it is larger than the sum of its proper divisors (514495994).

1028471278 is an equidigital number, since it uses as much as digits as its factorization.

1028471278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86786.

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 1028471278 is about 32069.7876201262. The cubic root of 1028471278 is about 1009.4017559682.

The spelling of 1028471278 in words is "one billion, twenty-eight million, four hundred seventy-one thousand, two hundred seventy-eight".