227778406 has 8 divisors (see below), whose sum is σ = 342406944. Its totient is φ = 113642760.

The previous prime is 227778371. The next prime is 227778413. The reversal of 227778406 is 604877722.

227778406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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, 122065 + ... + 123916.

It is an arithmetic number, because the mean of its divisors is an integer number (42800868).

Almost surely, 2^227778406 is an apocalyptic number.

227778406 is a deficient number, since it is larger than the sum of its proper divisors (114628538).

227778406 is a wasteful number, since it uses less digits than its factorization.

227778406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246446.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 227778406 is about 15092.3293762096. The cubic root of 227778406 is about 610.7134946075.

The spelling of 227778406 in words is "two hundred twenty-seven million, seven hundred seventy-eight thousand, four hundred six".