1228946271 has 32 divisors (see below), whose sum is σ = 1918107648. Its totient is φ = 685308000.

The previous prime is 1228946263. The next prime is 1228946273. The reversal of 1228946271 is 1726498221.

It is not a de Polignac number, because 1228946271 - 2³ = 1228946263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228946273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376396 + ... + 379646.

It is an arithmetic number, because the mean of its divisors is an integer number (59940864).

Almost surely, 2^1228946271 is an apocalyptic number.

1228946271 is a deficient number, since it is larger than the sum of its proper divisors (689161377).

1228946271 is a wasteful number, since it uses less digits than its factorization.

1228946271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691.

The product of its digits is 96768, while the sum is 42.

The square root of 1228946271 is about 35056.3299704918. The cubic root of 1228946271 is about 1071.1352178494.

The spelling of 1228946271 in words is "one billion, two hundred twenty-eight million, nine hundred forty-six thousand, two hundred seventy-one".