2278136216 has 16 divisors (see below), whose sum is σ = 4370843400. Its totient is φ = 1112577984.

The previous prime is 2278136183. The next prime is 2278136219. The reversal of 2278136216 is 6126318722.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2278136216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278136219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3310901 + ... + 3311588.

Almost surely, 2^2278136216 is an apocalyptic number.

It is an amenable number.

2278136216 is a deficient number, since it is larger than the sum of its proper divisors (2092707184).

2278136216 is a wasteful number, since it uses less digits than its factorization.

2278136216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6622538 (or 6622534 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 2278136216 is about 47729.8252249052. The cubic root of 2278136216 is about 1315.8101415854.

The spelling of 2278136216 in words is "two billion, two hundred seventy-eight million, one hundred thirty-six thousand, two hundred sixteen".