2478839466 has 8 divisors (see below), whose sum is σ = 4957678944. Its totient is φ = 826279820.

The previous prime is 2478839449. The next prime is 2478839491. The reversal of 2478839466 is 6649388742.

It is a sphenic number, since it is the product of 3 distinct primes.

2478839466 is an admirable number.

It is a super-2 number, since 2×2478839466² = 12289290196398330312, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206569950 + ... + 206569961.

It is an arithmetic number, because the mean of its divisors is an integer number (619709868).

Almost surely, 2^2478839466 is an apocalyptic number.

2478839466 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2478839466 is a wasteful number, since it uses less digits than its factorization.

2478839466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413139916.

The product of its digits is 13934592, while the sum is 57.

The square root of 2478839466 is about 49787.9449867134. The cubic root of 2478839466 is about 1353.3687183001.

The spelling of 2478839466 in words is "two billion, four hundred seventy-eight million, eight hundred thirty-nine thousand, four hundred sixty-six".