1028361278 has 16 divisors (see below), whose sum is σ = 1763664864. Its totient is φ = 440536320.

The previous prime is 1028361247. The next prime is 1028361287. The reversal of 1028361278 is 8721638201.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20726 + ... + 49862.

It is an arithmetic number, because the mean of its divisors is an integer number (110229054).

Almost surely, 2^1028361278 is an apocalyptic number.

1028361278 is a deficient number, since it is larger than the sum of its proper divisors (735303586).

1028361278 is a wasteful number, since it uses less digits than its factorization.

1028361278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31667.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 1028361278 is about 32068.0725644682. The cubic root of 1028361278 is about 1009.3657678778.

Adding to 1028361278 its reverse (8721638201), we get a palindrome (9749999479).

The spelling of 1028361278 in words is "one billion, twenty-eight million, three hundred sixty-one thousand, two hundred seventy-eight".