2821481478 has 16 divisors (see below), whose sum is σ = 6269958960. Its totient is φ = 940493808.

The previous prime is 2821481423. The next prime is 2821481479. The reversal of 2821481478 is 8741841282.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821481479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26124775 + ... + 26124882.

It is an arithmetic number, because the mean of its divisors is an integer number (391872435).

Almost surely, 2^2821481478 is an apocalyptic number.

2821481478 is an abundant number, since it is smaller than the sum of its proper divisors (3448477482).

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

2821481478 is a wasteful number, since it uses less digits than its factorization.

2821481478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52249668 (or 52249662 counting only the distinct ones).

The product of its digits is 229376, while the sum is 45.

The square root of 2821481478 is about 53117.6192802351. The cubic root of 2821481478 is about 1413.0550057247.

The spelling of 2821481478 in words is "two billion, eight hundred twenty-one million, four hundred eighty-one thousand, four hundred seventy-eight".