2278963458 has 32 divisors (see below), whose sum is σ = 5362269120. Its totient is φ = 714968640.

The previous prime is 2278963451. The next prime is 2278963469. The reversal of 2278963458 is 8543698722.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2278963451) 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, 1240348 + ... + 1242183.

It is an arithmetic number, because the mean of its divisors is an integer number (167570910).

Almost surely, 2^2278963458 is an apocalyptic number.

2278963458 is an abundant number, since it is smaller than the sum of its proper divisors (3083305662).

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

2278963458 is a wasteful number, since it uses less digits than its factorization.

2278963458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482559 (or 2482553 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 2278963458 is about 47738.4903196572. The cubic root of 2278963458 is about 1315.9693889678.

The spelling of 2278963458 in words is "two billion, two hundred seventy-eight million, nine hundred sixty-three thousand, four hundred fifty-eight".