1228472806 has 16 divisors (see below), whose sum is σ = 2019763008. Its totient is φ = 555748200.

The previous prime is 1228472789. The next prime is 1228472909. The reversal of 1228472806 is 6082748221.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 127680 + ... + 136963.

It is an arithmetic number, because the mean of its divisors is an integer number (126235188).

Almost surely, 2^1228472806 is an apocalyptic number.

1228472806 is a deficient number, since it is larger than the sum of its proper divisors (791290202).

1228472806 is a wasteful number, since it uses less digits than its factorization.

1228472806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264867.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 1228472806 is about 35049.5764025758. The cubic root of 1228472806 is about 1070.9976446591.

The spelling of 1228472806 in words is "one billion, two hundred twenty-eight million, four hundred seventy-two thousand, eight hundred six".