2278630352 has 20 divisors (see below), whose sum is σ = 4421388516. Its totient is φ = 1137626880.

The previous prime is 2278630351. The next prime is 2278630363. The reversal of 2278630352 is 2530368722.

It can be written as a sum of positive squares in 2 ways, for example, as 2089952656 + 188677696 = 45716^2 + 13736^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278630351) 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, 94349 + ... + 116012.

Almost surely, 2^2278630352 is an apocalyptic number.

It is an amenable number.

2278630352 is a deficient number, since it is larger than the sum of its proper divisors (2142758164).

2278630352 is a wasteful number, since it uses less digits than its factorization.

2278630352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211046 (or 211040 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 2278630352 is about 47735.0013302608. The cubic root of 2278630352 is about 1315.9052693703.

The spelling of 2278630352 in words is "two billion, two hundred seventy-eight million, six hundred thirty thousand, three hundred fifty-two".