1228426852 has 6 divisors (see below), whose sum is σ = 2149746998. Its totient is φ = 614213424.

The previous prime is 1228426831. The next prime is 1228426883. The reversal of 1228426852 is 2586248221.

It can be written as a sum of positive squares in only one way, i.e., 812022016 + 416404836 = 28496^2 + 20406^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 153553353 + ... + 153553360.

Almost surely, 2^1228426852 is an apocalyptic number.

It is an amenable number.

1228426852 is a deficient number, since it is larger than the sum of its proper divisors (921320146).

1228426852 is a wasteful number, since it uses less digits than its factorization.

1228426852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307106717 (or 307106715 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The square root of 1228426852 is about 35048.9208393069. The cubic root of 1228426852 is about 1070.9842900725.

The spelling of 1228426852 in words is "one billion, two hundred twenty-eight million, four hundred twenty-six thousand, eight hundred fifty-two".