2821481428 has 12 divisors (see below), whose sum is σ = 4945276000. Its totient is φ = 1408545432.

The previous prime is 2821481423. The next prime is 2821481479. The reversal of 2821481428 is 8241841282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821481423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545928 + ... + 551071.

Almost surely, 2^2821481428 is an apocalyptic number.

It is an amenable number.

2821481428 is a deficient number, since it is larger than the sum of its proper divisors (2123794572).

2821481428 is a wasteful number, since it uses less digits than its factorization.

2821481428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097646 (or 1097644 counting only the distinct ones).

The product of its digits is 65536, while the sum is 40.

The square root of 2821481428 is about 53117.6188095814. The cubic root of 2821481428 is about 1413.0549973777.

The spelling of 2821481428 in words is "two billion, eight hundred twenty-one million, four hundred eighty-one thousand, four hundred twenty-eight".