2278204823 has 16 divisors (see below), whose sum is σ = 2508732000. Its totient is φ = 2060416512.

The previous prime is 2278204813. The next prime is 2278204843. The reversal of 2278204823 is 3284028722.

It is a cyclic number.

It is not a de Polignac number, because 2278204823 - 2¹⁰ = 2278203799 is a prime.

It is a super-2 number, since 2×2278204823² = 10380434431080922658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278204813) 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 15 ways as a sum of consecutive naturals, for example, 25811 + ... + 72267.

It is an arithmetic number, because the mean of its divisors is an integer number (156795750).

Almost surely, 2^2278204823 is an apocalyptic number.

2278204823 is a deficient number, since it is larger than the sum of its proper divisors (230527177).

2278204823 is a wasteful number, since it uses less digits than its factorization.

2278204823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46594.

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 2278204823 is about 47730.5439210575. The cubic root of 2278204823 is about 1315.8233501722.

The spelling of 2278204823 in words is "two billion, two hundred seventy-eight million, two hundred four thousand, eight hundred twenty-three".