1228486995 has 48 divisors (see below), whose sum is σ = 2184399360. Its totient is φ = 638342208.

The previous prime is 1228486981. The next prime is 1228487021. The reversal of 1228486995 is 5996848221.

It is a happy number.

It is not a de Polignac number, because 1228486995 - 2¹⁰ = 1228485971 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1390824 + ... + 1391706.

It is an arithmetic number, because the mean of its divisors is an integer number (45508320).

Almost surely, 2^1228486995 is an apocalyptic number.

1228486995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1228486995 is a deficient number, since it is larger than the sum of its proper divisors (955912365).

1228486995 is a wasteful number, since it uses less digits than its factorization.

1228486995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656 (or 1653 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 1228486995 is about 35049.7788152793. The cubic root of 1228486995 is about 1071.0017680246.

The spelling of 1228486995 in words is "one billion, two hundred twenty-eight million, four hundred eighty-six thousand, nine hundred ninety-five".