1028299555 has 4 divisors (see below), whose sum is σ = 1233959472. Its totient is φ = 822639640.

The previous prime is 1028299541. The next prime is 1028299579. The reversal of 1028299555 is 5559928201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1028299555 - 2¹⁵ = 1028266787 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102829951 + ... + 102829960.

It is an arithmetic number, because the mean of its divisors is an integer number (308489868).

Almost surely, 2^1028299555 is an apocalyptic number.

1028299555 is a deficient number, since it is larger than the sum of its proper divisors (205659917).

1028299555 is an equidigital number, since it uses as much as digits as its factorization.

1028299555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205659916.

The product of its (nonzero) digits is 324000, while the sum is 46.

The square root of 1028299555 is about 32067.1101753806. The cubic root of 1028299555 is about 1009.3455731819.

The spelling of 1028299555 in words is "one billion, twenty-eight million, two hundred ninety-nine thousand, five hundred fifty-five".