2273778120 has 64 divisors (see below), whose sum is σ = 6825813120. Its totient is φ = 605942784.

The previous prime is 2273778107. The next prime is 2273778121. The reversal of 2273778120 is 218773722.

It is not an unprimeable number, because it can be changed into a prime (2273778121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207909 + ... + 218571.

It is an arithmetic number, because the mean of its divisors is an integer number (106653330).

Almost surely, 2^2273778120 is an apocalyptic number.

2273778120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2273778120 is an abundant number, since it is smaller than the sum of its proper divisors (4552035000).

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

2273778120 is a wasteful number, since it uses less digits than its factorization.

2273778120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12454 (or 12450 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 2273778120 is about 47684.1495677547. The cubic root of 2273778120 is about 1314.9705535870.

The spelling of 2273778120 in words is "two billion, two hundred seventy-three million, seven hundred seventy-eight thousand, one hundred twenty".