2278970730 has 24 divisors (see below), whose sum is σ = 5925324132. Its totient is φ = 607725504.

The previous prime is 2278970669. The next prime is 2278970821. The reversal of 2278970730 is 370798722.

It can be written as a sum of positive squares in 2 ways, for example, as 2278439289 + 531441 = 47733^2 + 729^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 12660859 + ... + 12661038.

Almost surely, 2^2278970730 is an apocalyptic number.

2278970730 is an abundant number, since it is smaller than the sum of its proper divisors (3646353402).

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

2278970730 is a wasteful number, since it uses less digits than its factorization.

2278970730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25321910 (or 25321907 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 2278970730 is about 47738.5664845521. The cubic root of 2278970730 is about 1315.9707886859.

The spelling of 2278970730 in words is "two billion, two hundred seventy-eight million, nine hundred seventy thousand, seven hundred thirty".