2246888978 has 4 divisors (see below), whose sum is σ = 3370333470. Its totient is φ = 1123444488.

The previous prime is 2246888977. The next prime is 2246888983. The reversal of 2246888978 is 8798886422.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8798886422 = 2 ⋅4399443211.

It can be written as a sum of positive squares in only one way, i.e., 1600560049 + 646328929 = 40007^2 + 25423^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2246888978.

It is not an unprimeable number, because it can be changed into a prime (2246888977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561722243 + ... + 561722246.

Almost surely, 2^2246888978 is an apocalyptic number.

2246888978 is a deficient number, since it is larger than the sum of its proper divisors (1123444492).

2246888978 is a wasteful number, since it uses less digits than its factorization.

2246888978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123444491.

The product of its digits is 24772608, while the sum is 62.

The square root of 2246888978 is about 47401.3605079010. The cubic root of 2246888978 is about 1309.7664789740.

The spelling of 2246888978 in words is "two billion, two hundred forty-six million, eight hundred eighty-eight thousand, nine hundred seventy-eight".