1628244255 has 16 divisors (see below), whose sum is σ = 2842026624. Its totient is φ = 789451680.

The previous prime is 1628244229. The next prime is 1628244257. The reversal of 1628244255 is 5524428261.

It is not a de Polignac number, because 1628244255 - 2⁸ = 1628243999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628244257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4933909 + ... + 4934238.

It is an arithmetic number, because the mean of its divisors is an integer number (177626664).

Almost surely, 2^1628244255 is an apocalyptic number.

1628244255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1628244255 is a deficient number, since it is larger than the sum of its proper divisors (1213782369).

1628244255 is a wasteful number, since it uses less digits than its factorization.

1628244255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9868166.

The product of its digits is 153600, while the sum is 39.

The square root of 1628244255 is about 40351.5087078538. The cubic root of 1628244255 is about 1176.4492165145.

The spelling of 1628244255 in words is "one billion, six hundred twenty-eight million, two hundred forty-four thousand, two hundred fifty-five".