1028280351 has 8 divisors (see below), whose sum is σ = 1566903424. Its totient is φ = 587588760.

The previous prime is 1028280313. The next prime is 1028280359. The reversal of 1028280351 is 1530828201.

1028280351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1028280351 - 2¹⁸ = 1028018207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028280359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24482845 + ... + 24482886.

It is an arithmetic number, because the mean of its divisors is an integer number (195862928).

Almost surely, 2^1028280351 is an apocalyptic number.

1028280351 is a deficient number, since it is larger than the sum of its proper divisors (538623073).

1028280351 is an equidigital number, since it uses as much as digits as its factorization.

1028280351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48965741.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1028280351 is about 32066.8107394546. The cubic root of 1028280351 is about 1009.3392898011.

The spelling of 1028280351 in words is "one billion, twenty-eight million, two hundred eighty thousand, three hundred fifty-one".