2278628468 has 12 divisors (see below), whose sum is σ = 3988730592. Its totient is φ = 1138991160.

The previous prime is 2278628459. The next prime is 2278628483. The reversal of 2278628468 is 8648268722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64538 + ... + 93393.

It is an arithmetic number, because the mean of its divisors is an integer number (332394216).

Almost surely, 2^2278628468 is an apocalyptic number.

It is an amenable number.

2278628468 is a deficient number, since it is larger than the sum of its proper divisors (1710102124).

2278628468 is a wasteful number, since it uses less digits than its factorization.

2278628468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161542 (or 161540 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 53.

The square root of 2278628468 is about 47734.9815963094. The cubic root of 2278628468 is about 1315.9049067013.

The spelling of 2278628468 in words is "two billion, two hundred seventy-eight million, six hundred twenty-eight thousand, four hundred sixty-eight".