2278125216 has 48 divisors (see below), whose sum is σ = 6644534400. Its totient is φ = 759374784.

The previous prime is 2278125211. The next prime is 2278125221. The reversal of 2278125216 is 6125218722.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2278125211) and next prime (2278125221).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2278125211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317496 + ... + 1319223.

It is an arithmetic number, because the mean of its divisors is an integer number (138427800).

Almost surely, 2^2278125216 is an apocalyptic number.

It is an amenable number.

2278125216 is an abundant number, since it is smaller than the sum of its proper divisors (4366409184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2278125216 is a wasteful number, since it uses less digits than its factorization.

2278125216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636738 (or 2636724 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 2278125216 is about 47729.7099928336. The cubic root of 2278125216 is about 1315.8080237818.

The spelling of 2278125216 in words is "two billion, two hundred seventy-eight million, one hundred twenty-five thousand, two hundred sixteen".