2278493546 has 16 divisors (see below), whose sum is σ = 3996826944. Its totient is φ = 953787744.

The previous prime is 2278493519. The next prime is 2278493549. The reversal of 2278493546 is 6453948722.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2278493494 and 2278493503.

It is not an unprimeable number, because it can be changed into a prime (2278493549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1891835 + ... + 1893038.

It is an arithmetic number, because the mean of its divisors is an integer number (249801684).

Almost surely, 2^2278493546 is an apocalyptic number.

2278493546 is a deficient number, since it is larger than the sum of its proper divisors (1718333398).

2278493546 is a wasteful number, since it uses less digits than its factorization.

2278493546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784925.

The product of its digits is 2903040, while the sum is 50.

The square root of 2278493546 is about 47733.5683350826. The cubic root of 2278493546 is about 1315.8789337635.

The spelling of 2278493546 in words is "two billion, two hundred seventy-eight million, four hundred ninety-three thousand, five hundred forty-six".