1222457806 has 8 divisors (see below), whose sum is σ = 1839227544. Its totient is φ = 609381960.

The previous prime is 1222457801. The next prime is 1222457861. The reversal of 1222457806 is 6087542221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222457801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922645 + ... + 923968.

It is an arithmetic number, because the mean of its divisors is an integer number (229903443).

Almost surely, 2^1222457806 is an apocalyptic number.

1222457806 is a deficient number, since it is larger than the sum of its proper divisors (616769738).

1222457806 is a wasteful number, since it uses less digits than its factorization.

1222457806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846946.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 1222457806 is about 34963.6640814432. The cubic root of 1222457806 is about 1069.2468004086.

The spelling of 1222457806 in words is "one billion, two hundred twenty-two million, four hundred fifty-seven thousand, eight hundred six".